In article ,
Grimly Curmudgeon wrote:
Oh, right, that would be why the Ford Transit is the largest selling
light commercial vehicle in the UK then.... IMM, you are an ignorant
f*ckwit.

Notice how he totally ignored my 200,000 mile bike engine, with integral
gearbox, lubricated entirely on mineral oil.

Many many years ago, Castrol ran a series of ads about cars which had done
vast mileages on their very definitely non synthetic oils. And since those
days manufacturing tolerances and materials used in engines have improved
- let alone the oils themselves.
My bother's BMW 520 is approaching 250,000 miles, and has certainly never
had synthetic oil - and leads a hard life towing much of the time.

Synthetic only makes economic sense on engines designed for it and longer
service intervals. Otherwise just stick to what was recommended or better,
spec wise.

--
*Therapy is expensive, poppin' bubble wrap is cheap! You choose.

Dave Plowman London SW
To e-mail, change noise into sound.