In my experience of trying many different oils, what I think are the best, as far as the engine running cool and smooth shifting are: 1. Redline 15w50
Red Line Racing Two Stroke is the best oil I've run. It leaves a good film and smells the nicest.
Getting 30mpgs in my ‘14 and been running 5w30 for years, smoother and quieter
No issues with 5w-30. Switched my 21 Crosstrek to it due to the summer months coming. Little dip in mpg but the engine runs smoother.
Either way I have the impression that the engine has a smoother sound and feel now, can this be possibile or it's just a placebo ?
They sell Subaru branded Idemitsu at the parts counter
I stand by Redline 5w20. Not that I have bad “hemi tick” on my 5.7 but I swear the valvetrain is the quietest when I use that oil.
I personally use Red-Line products, and it's the absolute BEST products out there. Their 2 Stroke racing no smoke oil is OUTSTANDING and 2nd to none.
id put 17 at the okay point but any lower is not good - well my subaru would do about 18-17psi at idle so im sure alls fine
I have a slow oil leak (something like a quart every 1,500 miles). Dealer quoted just under $3,000 for the fix when it was 17 years old with 110,000 miles. I'll just buy the occasional quart of oil.
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