This is a discussion on I just changed my oil and now my car doesn't run the same... within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Originally Posted by Findus11 I know that when i switched to royal purple, my car felt like a whole new ...
Last edited by 20WRX04; 09-01-2009 at 05:16 PM.
The first rule of the Faction is...DO NOT TALK ABOUT THE FACTION.
Hybrid Faction #19
Blobeye Syndicate #19
Hawk Eye #1991
Dirty Crew #11
Military Militia #1991
I still don't know how I got this car...
When we were running our circle track cars, we experimented with:
Four out of five came out black and burnt after a 100 lap race. Only one didn't. Mobil 1. We started using Mobil 1 after that. When we sent our engine in for it's mid season refresh, our motor builder said he had never seen an engine in such good shape. He had been using Redline until then. He has since switched all of his engines to Mobil 1. That is now the only oil we trust in our $25k race engines.
I like Mobil 1 and am not a hater, but after reviewing all the UOA's on GC and hearing/feeling the difference in my car, I'm now moving off M1.
However, I suspect it has more to do with the weight and properties of GC rather than a brand improvement over M1. People run other weights of M1, rather than the 5w-30, with great success. Of course, a lot have success with 5w-30 M1 as well.
06 GTO M6 Quicksilver, SLP 455 Bobcat, LS7 Clutch w/ SS line (RPM tune:373rwhp/373rwtq)
07 WRX TR M5 Garnet Red Pearl w/ Straight PPGs and Cusco front LSD (Agile tune:307whp/343wtq)