I already said that.
Help with chosing Viscosity.
- Thread starter Vspec
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Put the the Redline 5w30 in it and drive it like you stold it. The car will not gain anything from the 10w30, and will crank faster in the winter with the 5W. Enough difference to extend battery life.
I'm not sure what age of a human has to do with the feeling that thicker oil is always better, other than the fact of confirming another ancient old oil fable.
I'm not sure what age of a human has to do with the feeling that thicker oil is always better, other than the fact of confirming another ancient old oil fable.
Old Age = Stubborness.
I'm 48, daughter is 8. She is way more stubborn than I.
I simply have seen too many good used oil analysis with the appropriate 100°C viscosity oil, too many great used oil analysis with 0W and 5W versions of the correct 100°C vis. oil and just about every 5W-20 oil produces a textbook perfect UOA. There is no reason to be thick.
I simply have seen too many good used oil analysis with the appropriate 100°C viscosity oil, too many great used oil analysis with 0W and 5W versions of the correct 100°C vis. oil and just about every 5W-20 oil produces a textbook perfect UOA. There is no reason to be thick.
According to my 2005 Subaru Impreza WRX STi manual, 5w30 is "recommended" and can be used at all temps, while 10w30 or 10W-40 (among other viscosities) can be used as well if temps are above -4°F.
Without getting blasted into space, may I ask why the need for Auto-RX on a 2004 Subaru?
Nice upgrade to the STI.
If I was in your shoes.... (Just finishing ARX, and wanting a good oil that would only be in there for 3k.) I would go to Home Depot and by Pennzoil Platinum for 2.60 a quart. I would save the good redline for when you are ready to do extended OCI.
There are a couple UOA running around from PP at 10k miles and it did just as well as M1 for the same interval. I remember seeing a couple UOA in turbo subies too. If others can go 10k you should be able to get by in 3k.
Also if your new to subies, you should know that they are relatively easy on oil. Even the turbo 2.5s.
Have fun with your suby, I love mine.
If I was in your shoes.... (Just finishing ARX, and wanting a good oil that would only be in there for 3k.) I would go to Home Depot and by Pennzoil Platinum for 2.60 a quart. I would save the good redline for when you are ready to do extended OCI.
There are a couple UOA running around from PP at 10k miles and it did just as well as M1 for the same interval. I remember seeing a couple UOA in turbo subies too. If others can go 10k you should be able to get by in 3k.
Also if your new to subies, you should know that they are relatively easy on oil. Even the turbo 2.5s.
Have fun with your suby, I love mine.
Why Auto-rx a 2004 Subaru? Simple, im the second owner and while the first owner kept VERY well documented service history and what not I ALWAYS start out a new vehicle that I aquire with a Auto-RX of the engine, transmission, power-steering system.
I treat every car I work on like it was never worked on before.
So I know, that its 100%.
I treat every car I work on like it was never worked on before.
So I know, that its 100%.
Redline 5w30 with a Purolator PureONE oil filter is winning.
Any objections?
Any objections?
I object to the PureONE because they are known to be restrictive to oil flow. If you don't believe me, you can ask one of the guys over on the filter board.
Hmm, on that same note, I want an oil filter with very high filtration and good flow, Silicone ADBV and an all around good design.
Recomendations?
Recomendations?
Napa Gold or Wix.
The oil filter is the least important part of an oil change. The most important part is that you change it. IMHO. Thats why for my GM vehicals I used AC Delco. All my other's I use either Supertech/Bosch whatever is most convenent. Any thing but a Fram will do great.
Vspec: Here's an excellent "oil filter study" that a fellow STi owner performed:
STi Oil Filter Analysis Preliminary Data (Dimensions + Pics)
STi Oil Filter Analysis Preliminary Data (Dimensions + Pics)
I recommend the OEM oil filter (made by Toyo Roki in Japan, part #15208AA100) it's a high-quality filter and they are reasonably priced when purchased in bulk online.
[ August 08, 2006, 12:28 PM: Message edited by: AndyH ]
[ August 08, 2006, 12:28 PM: Message edited by: AndyH ]
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