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Old 10-10-2012, 02:18 PM   #12
mr_yellow
Scooby Newbie
 
Member#: 39983
Join Date: Jul 2003
Vehicle:
2003 WRX Wagon
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Quote:
Originally Posted by bluesubie View Post
If you aren't having leaks then you may not need to switch. The Mobil1 HM oils have additional seal conditioners, have a thicker viscosity within the same grade, have a higher High Temp High Shear, and have more anti-wear additives when compared to the regular oils. There is an M1 5W-30 High Mileage oil. Some people run them just because they're more robust.

-Dennis
Thanks for all the info! I guess I'll be sticking with my mobil1 5w30 and 5000km change interval since weight is not a big factor. Never seen HM 5w30 Mobil1. I'll have to check that out.

Regarding all the leak comments, I did have an oil leak but had the PCV valve and seals replaced so everything is better now.

Thanks again!
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