The complete automotive resource for buyers, sellers, and owners like you.
Car, Truck and SUV Forums at Roadfly
+ Bentley Forums
+ BMW Forums
+ Cadillac Forums
+ Chevrolet Forums
+ Ferrari Forums
+ Jaguar Forums
+ Lamborghini Forums
+ Lotus Forums
+ Mercedes-Benz Forums
+ Maserati Forums
+ MINI Forums
+ Porsche Forums
+ General Discussion
+ Marketplace Forums
Re: Synthetic oil - what weight? (archive)
[ Follow Ups ] [ 5-series (E34) Message Board ] [ Msg. Board FAQ ]
Posted by keith 1994 530ia on August 13, 2001 at 13:35:16:

In Reply to: Synthetic oil - what weight? posted by Ed on August 12, 2001 at 21:06:30:

Castrol Syntec is not a true synthetic oil - it is made from hydroisomerized crude oil because it is a cheaper base stock (1/2 the price). Mobil 1 is a true synthetic oil, built up from more-expensive shorter chain molecules (PAO's). I use Mobil 1 15-W50 and have been very pleased. That actually shocked me when I read about Castrol, since I had always thought of them as one of the premier oil companies. However, this made me question the integrity of their other products, which I have since stopped using.

keith
1994 530ia


I have a 92 525 with 50k, been using 20-50 Castrol scince new. I am thinking of changing to 5-50 Castrol synthetic. Anyone know a downside to this? An alternate would be 15-50 Mobil 1.




Follow Ups:


[ Follow Ups ] [ 5-series (E34) Message Board ] [ Msg. Board FAQ ]
Questions, comments, or problems, please visit the Roadfly help desk.
Roadfly.com Logo © 1997 - 2009 Jump Internet Inc. All rights reserved.