Clubjazz - Honda Jazz & HR-V Forums

Honda Jazz Forums => Honda Jazz Mk1 2002-2008 => Topic started by: JazzyB on December 14, 2008, 04:56:36 PM

Title: What oil do you use?
Post by: JazzyB on December 14, 2008, 04:56:36 PM
I am asking the members what oil they use in their Honda Jazz's. Please quote what make and also what grade/spec your using.

The reason I am asking is because I cant seem to get a definitive answer

Castrol recommend Edge 0W-30 

Comma recommend Syner-G 5W-40

Honda recommend several grades in their handbook, why cant there just be one or maybe two. It would be a lot easier to choose.
Title: Re: What oil do you use?
Post by: RichardA on December 14, 2008, 05:31:25 PM
Halfords 10W/40 part synthetic (green bottle), as recommended by Halfords (see the flipchart in your local store).
Title: Re: What oil do you use?
Post by: JazzyB on December 14, 2008, 07:08:38 PM
Ive just been on halfords website and used the oil selector and thats says use 5W-40
Title: Re: What oil do you use?
Post by: olduser1 on December 15, 2008, 11:35:12 AM
Oil is key to the life of any engine, so nip down to your indi mator factor and ask for Castrol Magnatec 10w-40 for petrol engine, any quality oil to the correct Uk spec 10-40 will be fine.
always change the filter and fit replacement with a quality product .
Oil spec based on 1.4l engine
Title: Re: What oil do you use?
Post by: guest238 on December 15, 2008, 07:28:55 PM
Ive just been on halfords website and used the oil selector and thats says use 5W-40

5W-40 is probably Halfords own recomendation (costs more). 10W-40 will be suitable and cheaper.
Title: Re: What oil do you use?
Post by: culzean on February 21, 2009, 07:07:36 PM
Have always found castrol magnatec to be a very good oil, 10-40 or 5-30, instead of paying £45+ for a fully synthetic oil, pay around £25 for a good semi and change it every 6 months (it's really not good to leave oil in the engine for too long even (or especially should I say) if you only do low mileage.  Oil asborbs all the muck that your engine produces and the additives counteract the acidic products of combustion, short journeys that never get the oil hot tend to be harder on the oil than longer trips.

If you need to save a few bob, change the oil every 6 months and the filter every 12 - I always use genuine Honda filter, some cheaper ones have filter  mesh with larger holes which can let particles circulate around the engine that shouldn't be there.
Title: Re: What oil do you use?
Post by: culzean on April 14, 2010, 09:51:31 AM
Anyone interested in oils here is a website, bear in mind some of the people who appear on there sponsor the site (at least they are marked) so some claims may be a bit OTT.

Interesting info on oil additives and what they do, especially molybdenum disulphide ( normally called molyslip in UK) which I have used in many cars over the years with good results.

http://www.bobistheoilguy.com/cms/
Title: Re: What oil do you use?
Post by: guest229 on April 15, 2010, 07:49:19 AM
Magnatec 10 40
Title: Re: What oil do you use?
Post by: guest809 on April 15, 2010, 09:48:17 PM
Magnatec 5W 30, probably because I was beguiled by the adverts which said it sticks to the components from start up - and as our car does mostly short trips this seemed to be a good idea.

Changed every year despite mileage of around 7k pa, and always a Honda filter.

PS anyone know whether the hype about the magnetic effect of Magnatec actually works?
Title: Re: What oil do you use?
Post by: culzean on April 16, 2010, 09:42:58 AM
I trust Castrol oils, I don't think they would risk their good name by making bogus claims about Magnatec that could easily be disproved by rival companies.

IMHO molyslip is the best additive to use if your car does short journies and lots of cold starts because it is proven to attach itself to metal surfaces and does not get flushed away by the next oil change. It is also very beneficial in gearboxes and will make them silky smooth.  Molybdenum disulphide is well proven as a tenacious extreme pressure lubricant in industrial applications and I have used it in many cars (and many miles) over the years and have never had to put a car into a garage for any engine or gearbox related problem.

And no, before you ask I do not work for Castrol or molyslip but am speaking from experience......
Title: Re: What oil do you use?
Post by: guest809 on April 16, 2010, 08:08:39 PM
Culzean, do you (or does any other contributor please) know if there are different types of molyslip?

Halfords seems to have two - one pink and one blue packaging if that helps. One is £10 and the other £15, both for 325ml
Title: Re: What oil do you use?
Post by: culzean on April 17, 2010, 11:57:20 AM
The only two types I have come across are the one for engine oil and the one for gearbox oil.  The gearbox one is more concentrated normally costs more.

If you are going to do your gearbox I would change the oil at the same time and use a good quality synthetic gearbox or engine oil, pre-mix the molyslip with the correct quantity of new oil to make sure it is evenly spread around the gearbox. On the GD jazz the drain and fill plugs are on the passenger side of car close to the front suspension arm. You will need a sqeezy bottle with a tube on it to make it easier to get oil back in.
Title: Re: What oil do you use?
Post by: RichardA on June 06, 2010, 06:24:18 PM
I've bought some Castrol Magnatec [fully synthetic] 5W30 Oil 4 Litre from Tesco for £22.99. That's cheaper then what the dealer charged me last time for Shell 5W 30 and even cheaper than the Halford own brand oil. :)
Title: Re: What oil do you use?
Post by: culzean on June 15, 2010, 03:53:01 PM
For Jazz manual gearbox I used CASTROL MANUAL SMX-S (fully synthetic) - you will need 1.5 litres for a drain and fill. 

With normal UK conditions it will need replacing every 72K miles, it is fairly easy to get the old oil out but is challenging to get the new oil back in if you don't have a pump with a flexible tube on it) I had to use a plastic funnel and a tube about a metre long (threaded down under the battery and into the filler hole) to get oil into the gearbox. Getting access to the fill and drain plugs involves folding the plastic under-guarding out of the way, as the plugs are in the region of the nearside driveshaft. You will need ramps or axle stands to get access under front of car.

You need a 17mm ring spanner for fill plug and a 3/8" socket drive wrench for drain plug (the square fits nicely into the drain plug recess). Make sure you undo the 17mm fill plug before you undo the square drain plug because you don't want to drain the oil if you can't get the fill plug out to refill the oil!!

To make the gearbox quieter and the gear-change extra-slick I added a tube of gearbox molyslip to the oil and gave it a good shaking before pouring it in.

Be warned, it's a bit of a fiddly messy job - unless you are doing it for the love of it you may want to get a garage to do it.
Title: Re: What oil do you use?
Post by: guest1461 on June 16, 2010, 08:55:58 PM
Engine oil should be 5w40 but 0w30 can be used.
Title: Re: What oil do you use?
Post by: RichardA on June 20, 2010, 07:42:54 PM
This leaflet suggesting the correct oil was included with the owners manual of the new shape Jazz I had as a loan car (although the leaflet shows the previous shape Jazz).

The leaflet suggests 10w-40 or 0w-30.
The last time the dealer supplied the oil they used 5w-30.



[attachment deleted by admin]
Title: Re: What oil do you use?
Post by: guest1461 on June 20, 2010, 09:42:05 PM
Honda has revised there oil type recently which also includes the new insight.
recomended oil is 5w40 and 0w30. Not to sure about the 10w40 of the top of my head.
Title: Re: What oil do you use?
Post by: guest1382 on August 19, 2010, 08:57:06 AM
Magnatec 5W 30, probably because I was beguiled by the adverts which said it sticks to the components from start up - and as our car does mostly short trips this seemed to be a good idea.

Changed every year despite mileage of around 7k pa, and always a Honda filter.

PS anyone know whether the hype about the magnetic effect of Magnatec actually works?
all synth oils have this property
its just castrol chooses to advertise it
Title: Re: What oil do you use?
Post by: guest1630 on September 24, 2010, 02:39:34 PM
When I bought my car (second hand), it drove silky smooth, fun to drive with a real zip.

Got is serviced from a garage and he put carlube 5/30 (C2), drove like a dog, smoother at the start but when the temp got very hot, drove a bit lumpy. 

Changed oil to 10/40, car ran a bit thick, consumption went down to late 30s. 

Changed oil again, and put carlube 5/40 fully synthetic and it runs better and consumption is early 40s.  I've found. 

When you ask the dealers they all tend to use their own judgement.  Not all use Castrol as it costs more.  I'm thinking of trying 0/40 next time to see if I can get it to what is was like when I first bought it.  What you will also notice is that these cars are sensitive the the oil you use, which in turn impacts on your running and consumption figure.
Title: Re: What oil do you use?
Post by: guest1461 on September 24, 2010, 08:05:23 PM
When I bought my car (second hand), it drove silky smooth, fun to drive with a real zip.

Got is serviced from a garage and he put carlube 5/30 (C2), drove like a dog, smoother at the start but when the temp got very hot, drove a bit lumpy. 

Changed oil to 10/40, car ran a bit thick, consumption went down to late 30s. 

Changed oil again, and put carlube 5/40 fully synthetic and it runs better and consumption is early 40s.  I've found. 

When you ask the dealers they all tend to use their own judgement.  Not all use Castrol as it costs more.  I'm thinking of trying 0/40 next time to see if I can get it to what is was like when I first bought it.  What you will also notice is that these cars are sensitive the the oil you use, which in turn impacts on your running and consumption figure.


Try 0w30 which is the fuel saver grade from honda.
Title: Re: What oil do you use?
Post by: culzean on September 30, 2010, 11:08:58 AM
For the Jazz engine Magnatec 5W-30 A1 fully synthetic is not too expensive.

As for using engine oil in the Jazz manual gearbox - generally speaking oils designed for engines are high in detergents and additives to hold dirt in suspension and gearbox oils are much lower in detergents but have extreme pressure additives to prevent wear of the gear teeth, so it is much better to use a purpose made gearbox oil. I use SMX-S 75w-85 for the gearbox with a shot of Molyslip (Molybdenum Disulphide) gearbox for good measure. You will need 1.5 litres.
Title: Re: What oil do you use?
Post by: guest1010 on October 03, 2010, 04:47:12 PM
My EX requested first service at 4500 miles, mostly short urban journeys. Supplied my own Castrol Edge 0w-30 to local garage. Average mileage increased from 41 to 43 mpg (onboard computer).
Title: Re: What oil do you use?
Post by: guest1513 on October 03, 2010, 05:09:54 PM
Magnatec 5W 30, probably because I was beguiled by the adverts which said it sticks to the components from start up - and as our car does mostly short trips this seemed to be a good idea.

Changed every year despite mileage of around 7k pa, and always a Honda filter.

PS anyone know whether the hype about the magnetic effect of Magnatec actually works?
all synth oils have this property
its just castrol chooses to advertise it

Er, no, SFAIK, "magnetism" is not a property unique to synthetic oils.  Certain Group IV oils are non-polar, such as PAO types, whilst Group V "esters" are very polar.  Some naturally-derived oils (castor oil - hence Castrol R) are also polar, and happen to be esters..  Semi-synthetics - I know not.  Here's a link: http://tinyurl.com/28bs6tt  which if nothing else, indicates this aspect is not simple! Maybe an expert can explain better - I'm no expert.
Title: Re: What oil do you use?
Post by: guest806 on March 18, 2011, 08:31:41 PM
Picked up some Castrol GTX 15-40 from Tesco for £10.  Worth risking for the summer or get 10-40 magnatec?
Title: Re: What oil do you use?
Post by: JazzyB on March 18, 2011, 10:09:10 PM
Castrol recommend 0w-30
Title: Re: What oil do you use?
Post by: DV on April 10, 2011, 01:48:27 PM
For Jazz manual gearbox I used CASTROL MANUAL SMX-S (fully synthetic) - you will need 1.5 litres for a drain and fill. 

With normal UK conditions it will need replacing every 72K miles, it is fairly easy to get the old oil out but is challenging to get the new oil back in if you don't have a pump with a flexible tube on it) I had to use a plastic funnel and a tube about a metre long (threaded down under the battery and into the filler hole) to get oil into the gearbox. Getting access to the fill and drain plugs involves folding the plastic under-guarding out of the way, as the plugs are in the region of the nearside driveshaft. You will need ramps or axle stands to get access under front of car.

You need a 17mm ring spanner for fill plug and a 3/8" socket drive wrench for drain plug (the square fits nicely into the drain plug recess). Make sure you undo the 17mm fill plug before you undo the square drain plug because you don't want to drain the oil if you can't get the fill plug out to refill the oil!!

To make the gearbox quieter and the gear-change extra-slick I added a tube of gearbox molyslip to the oil and gave it a good shaking before pouring it in.

Be warned, it's a bit of a fiddly messy job - unless you are doing it for the love of it you may want to get a garage to do it.

I just noticed Castrol changed the recommended SMX-S: http://datasheets.bp.com/bpglis/FusionPDS.nsf/0/5519C9E39E993C95802577ED004A9A5B/$file/BPXE-85KSGS_0.pdf (http://datasheets.bp.com/bpglis/FusionPDS.nsf/0/5519C9E39E993C95802577ED004A9A5B/$file/BPXE-85KSGS_0.pdf) gearbox oil to Syntrans Multivehicle 75W-90: http://datasheets.bp.com/bpglis/FusionPDS.nsf/0/EBD50B7F0C69A5C48025782000516BFB/$file/BPXE-8DHD82_0.pdf (http://datasheets.bp.com/bpglis/FusionPDS.nsf/0/EBD50B7F0C69A5C48025782000516BFB/$file/BPXE-8DHD82_0.pdf)
Title: Re: What oil do you use?
Post by: guest1844 on April 13, 2011, 10:23:47 PM
Engine Oil: Carlube Triple R fully synthetic 5w40 from Eurocarparts, £25 for 5litres. Meets/exceeds all the specs. I don't know how a punter like me can make any determination of quality other than the spec on the side of the bottle. I always change it early as well (having said that its 10k since the last change, which is more than I like to take it to).

Gearbox Oil - genuine Honda MTF from the dealer, £10+VAT/litre.

I'm about to change the gearbox oil "early" (32kmiles/6yrs) to try and mitigate against future gearbox probs. Do you think Honda would have a comment on adding Molyslip? Always a bit suspicious of additives but tempted in this case.
Title: Re: What oil do you use?
Post by: DV on April 25, 2011, 06:22:40 PM
I would not add anything to it because the good oil contains everything what needed.
Title: Re: What oil do you use?
Post by: JazzyB on April 25, 2011, 06:30:18 PM
Honda recommend's now 0W-20 oil, which is hard to obtain and expensive if you can.
Title: Re: What oil do you use?
Post by: DV on April 25, 2011, 06:52:32 PM
Did you see anywhere such an oil (0W-20)?

Edit: I found 2: http://www.mobiloil.com/usa-english/motoroil/oils/mobil_1_0w-20.aspx (http://www.mobiloil.com/usa-english/motoroil/oils/mobil_1_0w-20.aspx)
Mobil 1 0W-20 Advanced Fuel Economy

Castrol: http://www.castrol.com/castrol/genericarticle.do?categoryId=82915470&contentId=6006933 (http://www.castrol.com/castrol/genericarticle.do?categoryId=82915470&contentId=6006933)
Title: Re: What oil do you use?
Post by: JazzyB on April 25, 2011, 07:03:41 PM
http://www.opieoils.co.uk/c-650-0w-20-engine-oil.aspx

Title: Re: What oil do you use?
Post by: guest2129 on June 01, 2011, 01:09:07 AM
I have the GD Jazz, and in the workshop manual it has a few different recommended oil types, mainly due to the lowest temperature they might have to work at.


Since I'm in Portugal, I went with BP Visco 5000 10w40, but I could have easily went with a 15w40 oil as well.



Did my own oil change, used a Sofima S3265R oil filter, as well as Sofima filters for air and polen (you wouldn't believe the MUCK in the cabin air filter....  :o)
Title: Re: What oil do you use?
Post by: DV on June 12, 2011, 10:17:24 AM
Has anyone heard about the Eneos (Nippon Oil) http://www.noeu.jx-group.eu/product/index.html (http://www.noeu.jx-group.eu/product/index.html) oil brand?
Japarts.co.uk sells ENEOS Premium Ultra 0W20 oil, http://www.japarts.co.uk/shop/?sh=oil (http://www.japarts.co.uk/shop/?sh=oil) but currently out of stock...
Eneos catalogue, http://www.noeu.jx-group.eu/pdf/catalogue.pdf  (http://www.noeu.jx-group.eu/pdf/catalogue.pdf).
ENEOS Premium Ultra 0W20 technical doc, http://www.noeu.jx-group.eu/product/pdf/PB-ENEOS-0W20.pdf (http://www.noeu.jx-group.eu/product/pdf/PB-ENEOS-0W20.pdf).
Title: Re: What oil do you use?
Post by: JazzyB on June 12, 2011, 12:03:08 PM
I have heard of them its a Japanese oil company but I haven't used their products.

Try googleing about them on the internet to see what other people think about them.

Have you tried this website:

http://www.opieoils.co.uk/
Title: Re: What oil do you use?
Post by: DV on June 12, 2011, 03:54:54 PM
http://www.opieoils.co.uk/ does not sell any, but this ads looks good, http://www.youtube.com/watch?v=rahXmxEWIYY (http://www.youtube.com/watch?v=rahXmxEWIYY).
Apart from this ads the ENEOS oil is more common in Japan and in the USA.
I think I`m going for it at the next oil change. Currently I`ve 2.6 litres of Castrol Edge left from February (this year) I`ll buy 1 more litres of Castrol and change the oil next weekend. Around October I can put the 0W-20 oil in the car (Eneos). 12500 miles oil change interval I`m following.
Title: Re: What oil do you use?
Post by: JazzyB on June 12, 2011, 04:05:41 PM
Next oil change I'm gonna use this:

http://www.autosessive.com/9/section.aspx/1674/Shell_Helix_Ultra_AS_0W30_5ltr
Title: Re: What oil do you use?
Post by: RichardA on June 12, 2011, 06:13:07 PM
I recently bought some Mobile 1 5w30 5ltr on the special offer at Halfords.
Title: Re: What oil do you use?
Post by: guest1262 on June 28, 2011, 11:04:43 AM
My Jazz doesn't use oil.
I used the old fashioned approach of a running in period for the first 1,000 miles and now, with 7844 miles on the clock, the oil level is where it started.
Just in case I asked Holden Honda Norwich for and was given top up oil as the car was handed over. Unopened, it is Mobil 1 Fuel Economy 0W-30 - so that must be what they use when servicing.
Title: Re: What oil do you use?
Post by: DV on June 28, 2011, 04:24:33 PM
Today I asked Johnsons Honda, what oil is recommended for Honda Jazz and they are using 10W-40 oil because it is recommended by Honda. This is weird a bit... each dealer uses different grades of oil? ::)
Title: Re: What oil do you use?
Post by: RichardA on June 30, 2011, 09:25:30 PM
Last time I used the dealer's oil it was Shell 5W-30 (2yrs ago).

I had my Jazz serviced today using the oil I purchased from Halfords. The plaque outside my the dealer's workshop says Honda recommend Castrol lubricants, as did the sticker on the windscreen of the Civic 2.2 diesel I had as a loan car.

The mystery continues.   :D

Title: Re: What oil do you use?
Post by: guest2861 on November 01, 2011, 09:43:20 AM
My Honda parts dept specified 5W-40 fully synthetic for a 2005 Jazz.  Any mineral content may make the engine sound smoother and quieter initially but will soon start to leave deposits on the air intake.  I know because I have just had to clean thick dirty tarry grease-like oil off mine (which I have just brought). 

My Honda dealer service garage sold me 4 litres for £30.  This is competitive with other non-Honda makes, and the quality did look better.  As the Jazz engine only needs 3.6 litres, it is pointless to buy the standard 5 litres.  As the oil is so vital for the engine care and performance I would advise using the best oil available - and use a flush that can be added to the old oil before draining.

If the oil looks dirty then change it and the filter,  it is not a difficult or expensive task.

 :)
Title: Re: What oil do you use?
Post by: culzean on November 01, 2011, 05:03:45 PM
I would not add anything to it because the good oil contains everything what needed.

Well in an ideal world a good oil would contain everything required, and some of the more up-market oils do have a 'small' percentage of molybdenum disulphide in them these days, but molyslip ain't cheap and oils are sold in a very competitive and price-sensitive market.  The whole idea of any oil is to stop metal-to-metal contact in the engine and gearbox and MOS3 does that much better than oil alone.  The skirts of Honda pistons are coated (shot-peened) at the factory with molybdenum to reduce friction during the life of the engine - can't be a waste of time if Honda do it. 

Come on, you only change manual gearbox oil around every 72K nowadays and an extra £12 or so won't break the bank.

Just don't use molyslip (or any other friction reducing additive) in any automatic gearbox because the extra slipperyness will stop the gearbox from working.
Title: Re: What oil do you use?
Post by: guest806 on November 05, 2011, 02:08:50 PM
Halfords were doing a special on Castrol Magnatec and i picked up a couple of bottles.  I notice there were two different types Magnatec 5W-30 A3/B4 or the Magnatec 5W-30 A1.  The A1 said ford recommended so i asked the assistant who steered me to the A3/B4. 
When i got home, i enquired with castrol and this is their reply.

The actual preferred product for this vehicle is Castrol EDGE 0W-30 and this is reflected on the Castrol website, however we would have no problem with you using either the Magnatec 5W-30 A3/B4 or the Magnatec 5W-30 A1..
For information, if you use either the EDGE 0W-30 or the Magnatec 5W-30 next time, you may benefit from improved fuel economy compared to the Magnatec 5W-30 A3/B4.
Title: Re: What oil do you use?
Post by: DV on November 05, 2011, 05:19:05 PM
For information, if you use either the EDGE 0W-30 or the Magnatec 5W-30 next time, you may benefit from improved fuel economy compared to the Magnatec 5W-30 A3/B4.
So it is not guaranteed.

Last time I bought Castrol Edge 5W-30 from Asda (normal price £35).
Title: Re: What oil do you use?
Post by: guest806 on November 06, 2011, 01:02:17 PM
I currently have the 5-30W so i will see if if the A3/B4 makes a difference.  I think it will be so small you won't notice.

Title: Re: What oil do you use?
Post by: guest2853 on November 07, 2011, 09:16:08 AM
As soon as the car will be out of warranty - 5w40 SM
Title: Re: What oil do you use?
Post by: guest3113 on March 11, 2012, 07:07:41 PM
Thread revival time.
Is slick 50 the same as moyslip?
Is off put that in my vespa, engine..  ;D
Title: Re: What oil do you use?
Post by: VicW on March 12, 2012, 03:16:45 PM
No Jeff. Molyslip is molydenum disulphide/graphite based,Slick 50 isn't.
I don't believe modern engines need these additives,just good quality oil and filter and six monthly changes.

Vic.
Title: Re: What oil do you use?
Post by: DV on June 21, 2013, 09:55:54 PM
Does anyone know if the GL-5 gearbox oil could be used in the GD Jazz gearbox or only the GL-4?

I`ve bought earlier an Eneos 75W90 GL-5 oil (link (http://www.noeu.jx-group.eu/product/75w90.html)), (2l) fully synthetic but what Castrol recommends is GL-4 with the same viscosity.
Thanks.
Title: Re: What oil do you use?
Post by: RichardA on June 23, 2013, 07:48:55 PM
I just bought some a 4 L bottle of Castrol Magnatec 5W-30 A1 fully synthetic off Amazon.

When quoted for a service recently the dealer said he uses 10W 40. ????
Title: Re: What oil do you use?
Post by: olduser1 on June 23, 2013, 08:08:31 PM
I'm amazed a dealer would even be able to quote the SAE spec, did you get offered a free coffee if you booked the Jazz in ?
Title: Re: What oil do you use?
Post by: DrShockr on June 23, 2013, 08:16:40 PM
I recently had the oil changed at my local independent for my 2005 jazz with 90k. I supplied Castrol edge 0w30 but mechanic said it would not be wise to use such a thin oil in an engine with that mileage even if it is recommended by Honda/Castrol. He advised to use 5w30 which I did go with (triple qx brand) and returned the 0w30. Was his argument correct?

Sent from my GT-I9505 using Tapatalk 4 Beta

Title: Re: What oil do you use?
Post by: culzean on June 23, 2013, 08:23:19 PM
I'm amazed a dealer would even be able to quote the SAE spec, did you get offered a free coffee if you booked the Jazz in ?

he was able to quote the SAE spec because he had several 45 gallon drums of the stuff in his workshop , never uses any other grade and uses it in gearboxes as well as engines (despite the fact gearbox oil needs extreme pressure additives).

Magnatec 5W-30 A1 is a fuel saving oil because of its lower viscosity and is no problem at all in UK climate (probably better in the lower temperatures we are now seeing now that 'global warming' or 'climate change' has now changed once again and is now officially 'global cooling' - maybe we are not producing ENOUGH C02 now - we all need to drive our cars more to warm the earth up again).
Title: Re: What oil do you use?
Post by: culzean on June 23, 2013, 08:31:05 PM
I recently had the oil changed at my local independent for my 2005 jazz with 90k. I supplied Castrol edge 0w30 but mechanic said it would not be wise to use such a thin oil in an engine with that mileage even if it is recommended by Honda/Castrol. He advised to use 5w30 which I did go with (triple qx brand) and returned the 0w30. Was his argument correct?

Sent from my GT-I9505 using Tapatalk 4 Beta

on any other engine than a Honda his argument may have been correct because as 'inferior'  (ie non Honda) engines wear the bearing clearances get bigger and oil pressure can drop if the 'thinner' oil can flow through too fast through the bigger gaps and the oil pump cannot supply the extra volume of oil.  But with a Honda engine it is barely run in at 90K and the oil pump will easily cope. (then again he had big drums of 5W-30 in the back and wanted to make the sale >:( )