Author Topic: Moly surprise  (Read 242 times)

springswood

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Moly surprise
« on: January 09, 2022, 08:50:47 AM »
A little over a week ago my oil needed topping up. The first time in 3 years/30k miles. (I've changed it every year too, of course) On a whim I decided to bung in some molybdenum disulphide additive not having any oil to hand. At 138k miles I thought it wouldn't do any harm and Halfords had some Slik 50 at a tenner.

The car seemed to like it, running a bit smoother in my usual pootling round to the shops, dog walks etc. It was when I got over 60 mph I got the surprise - it's quieter. A lot quieter.

I never expected such a big effect. Anyone know if that's just the coating effect of MoS2? I suppose there might be other things in there that have cleared out some of the oil ways.

Whatever it is I'm happy. My only real problem with the Jazz has always been that on a long run, say the 60 miles each way to my brother's, the noise was pretty wearing. On the motorway I've always turned music off because to hear it it would need to be way too loud. I'm not sure why I always thought it was road noise and not engine noise. Seems I was wrong.

Hopefully it should improve fuel economy too.
"Indecision is a terrible thing"
Or is it? What do you think?

fashionphotography

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Re: Moly surprise
« Reply #1 on: January 10, 2022, 03:24:45 PM »
are you saying you put molyslip in your engine ?

Jocko

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Re: Moly surprise
« Reply #2 on: January 10, 2022, 05:59:53 PM »
Slick 50 is an engine additive containing PTFE. Molyslip also produces an engine additive containing Molybdenum disulfide, hence the name.
I used to use Slick 50 regularly when I was running 60's and 70's cars and thought it was the bee's knees.

fashionphotography

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Re: Moly surprise
« Reply #3 on: January 10, 2022, 06:30:41 PM »
aaah yes . i did put a bottle of STP in my gearbox before xmas as the molyslip made no difference. but will get the same when i do an engine oil change

springswood

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Re: Moly surprise
« Reply #4 on: January 13, 2022, 08:51:12 AM »
It was an engine oil additive which contains Molybdenum Disulphide under the Slik50 brand.
https://www.halfords.com/motoring/engine-oils-and-fluids/fuel-and-oil-additives/moly-engine-protector-325ml-262771.html

Seemed a reasonable thing to do as I read the iDSi engine comes out of the factory with various surfaces having a MOS2 coating to reduce friction.
"Indecision is a terrible thing"
Or is it? What do you think?

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