Quote:
Originally Posted by LittleBlackDuck
Yep. You dad has been lucky, and probably has an engine that is in good condition. I am a believer in using the correct oil with few additives that are not "designed in".
Simon
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He's a firm believer in them and has used molyslip in all of his cars.
All have been low milage cars with good engines, and all of them died of rust.
Car manufacturers (and the oil companies) have no doubt tested them and found little or no benefit other than the weight reduction to the wallet, that is why they are not recommended.
I would however love to be proved wrong.