NORULZleggy Posted March 17, 2009 Share Posted March 17, 2009 I have an 08 Leggy 2.5i. I and running castrol 5W30 in the car. I ran Royal purple in my ZX2. Which my ZX2(93 OCT full dyno tune with SCT) would have beat my leggy any day. I test royal purple in my ZX2 for 8k miles and did not change the oil. I had may 7-8K redline revs in this car which was my DD cause I did not want to put miles on my STI. Point is that if you take care of the car and change the oil I think it will be good for 200k miles on the car. I say use the syn oil on your car, one good thing is that you get to wait long on the oil change. Link to comment Share on other sites More sharing options...
frostbite3360 Posted March 17, 2009 Share Posted March 17, 2009 I don't think synthetic is a complete waste of money on an N/A. However, its not like you can't run conventional oil either. You can use either, just choose one and stick with it. Once you go synthetic you dont want to go back to conventional. Link to comment Share on other sites More sharing options...
jtmvt Posted April 6, 2009 Share Posted April 6, 2009 Motul 5W-40 is like gravy for your engine..... Link to comment Share on other sites More sharing options...
mwiener2 Posted April 7, 2009 Share Posted April 7, 2009 Are YOU blaming your oil for your lack of spool? still waiting My Mods List (Updated 8/22/17) 2005 Outback FMT Running on Electrons Link to comment Share on other sites More sharing options...
spect2k Posted April 7, 2009 Share Posted April 7, 2009 The problems that many people have had with mobil1 have primarily (if not all) been with turbo charged subarus. As far as I know and based on my own personal experience, mobil1 5w-30 extended performance is a pretty good oil. I run it in my wife's rav4 with a 7500 mile OCI. I've never used the non 'extended performance' version though which I hear isn't quite as good for whatever reason. In my turbo subie I run amsoil 5w-30. I like synthetic oils a lot personally and run it on my turbo and n/a cars as you can see. Link to comment Share on other sites More sharing options...
05pearl Posted April 7, 2009 Share Posted April 7, 2009 Link to comment Share on other sites More sharing options...
BAC5.2 Posted April 7, 2009 Share Posted April 7, 2009 I'll be using Motul 8100. I have access to 55 gallon drums of the stuff, so I'm not too worried about cost. It would cost MORE for me to go to Autozone and buy 5 quarts of Castrol GTX or something. I'll use OE filters too. [URL="http://legacygt.com/forums/showthread.php/proper-flip-key-interesti-159894.html"]Flip Key Development Thread[/URL] "Genius may have its limitations, but stupidity is not thus handicapped." - E. Hubbard Link to comment Share on other sites More sharing options...
jtmvt Posted April 7, 2009 Share Posted April 7, 2009 Agile Automotive in Maryland has done real world testing with numerous motor oils, and they've found that Motul performs best on our Subaru Boxer engines. They are also a dealer of Motul, so you can get it in bulk from them. I got a case (four 5 Liter jugs) for around $150. I also like the fact that Motul comes in metric volumes because the 2.5L turbo models take exactly 4 Liters, so there is no need to guesstimate 4.2 quarts. I'd highly recommend Motul 5W-30 or 5W-40 for anyone who has the 2.5L turbo model, especially those with engine mods/tuning. Link to comment Share on other sites More sharing options...
tubasteve Posted April 7, 2009 Share Posted April 7, 2009 I put AMSOil 0w30 signature synthetic in recently. Feels good, no serious difference from prior Mobil 0w30. As far as the oil goes, with AMSOil and their filter you get a retarded long 25k interval. Will definitely compensate for the price of the oil and filter even if I decide to change before 25k. Link to comment Share on other sites More sharing options...
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