In Reply to: Thermostat--71c,75c, or 80c ? posted by ron on January 03, 2000 at 13:52:13:
Mobil1 v Syntec
Firstly, I am a Mobil1 man through and through!
I think oil choice is kind of like beer! You would drink most anything (almost anything!) in a pinch but given the choice...etc. etc.
Multi-vis oils with less "distance between the numbers" require less viscosity modifiers.
15w50 gives a good ambient temp spread
(approx -32F to 120F) with a diff. of only 35. 5w50 Syntec has more modifiers due to the 45 diff.
Mobil1 has tested out to be about the best of the
"regular" synthetic oils.
95 525i 5spd. Shark in sheeps clothing.