06-10-2019, 04:09 PM
(This post was last modified: 06-10-2019, 04:26 PM by Tony Griffiths.)
One might imagine that for any sort of gearbox one has to use an EP (Extreme Pressure) oil - but this is not necessarily the case. EP oils contain sulphur - in either an active form - that will attack bronze, copper and their alloys - or an inactive, which won't. If an EP oil has an API rating of either GL-4 or GL-5 then the sulphur is inactive and safe to use in boxes with bronze bearings. However, engine oil is fine - and used for decades by thousands of Seven owners.
(06-10-2019, 02:31 PM)Alan Wrote: Hmm, two words come to mind. Sledgehammer and Nut. If it’s as good as you say, and it’s been around a while, why aren’t the (very competitive) oil companies adding it to their standard products?My thoughs exactly. If it's as good as claimed, surely ever F1 engine would be using it - and the makers shouting the fact from the rooftops. In addition, it's not unusual to find many cars running up huge mileages on the same engine without wearing it out; there are plenty of examples around including 451,000. The local garage had a Honda GC125 motorcycle in a few years ago that had clocked up over 80,000 miles on one engine - and that just a cheap, commuter 125cc - so modern oild must be pretty good and not need anything adding to them. However, if you put a teaspoon-full of 3-in-One oil in your back axle to reduce oil drag, a drop of the old Molyslip might be in order..... (no, I've never tried it).