The only oil additive I used was Molyslip in an original mini running 30 grade oil in Australia. It saved an overheating (top hose split) engine. The garage that replaced the softened valve springs and skimmed the warped head were most interested in what oil I was using as they expected it to be sized. I have not used any additives for five decades. I realised that all cars need is good quality oil and regular changes.
Last edited by: Old Navy on Wed 6 Dec 17 at 15:15
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