.engine oils do not work in gearboxes so it takes a very special oil that will work in both, is the BB unique ? I
Ahh,, that would explain why all the mini's had to have special oil then @tu*
Oh.. errr hang on... They didn't..
The information you refer to appertains to the long chain molecules that WERE used in a good many upmarket motor oils.. Some 18 years ago
The actions of the gear cogs were found to actually cut the molecules causing them to break down early and cause a massive shift in the viscosity.
But that is very very old news and long since superseded as the oils have been improved over the years, time and again.
One of the main reasons to improve/modify being several cars made similar to the old mini, AND the advent of turbos being from rare to almost commonplace
.
The oil companies had to change the recipe else they were losing a fairly large hunk of the market by making their oils elitist and only work reliably in certain vehicles.
The basics of the doc you reproduced is actually now almost 15 years old.
It was last updated in 2003 and was issued by someone who was paid by a certain large oil company ( no vested interest there then ! LOL ! )
Why on earth will you not let this go Smedly.. You are still offering no evidence and as you say ( twice ) folk can do as they see fit.
Personally I think that most people will lean towards the overwhelming
BIRD related evidence rather than anything else
And that would include the several documented million mile plus Birds that are out there, all of which are running on semi synth
plus
that would also include the several examples on this forum where folk have tried fully synth, had a problem and reverted back.. an example of which is just a few posts up from this ! ( or perhaps you are saying they are wrong and are making it up:dunno: )