Quote:
Originally Posted by Pablitomarrero
Ill take any excuse to put in 0w20 in my turboed car lol. But im going by what subaru recommends for its FI boxerd
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Actually, I would probably run Red Line 0W-20 over any Resource Conserving 5W-30 in my FI boxer. As quickly as some RC 5W-30's shear, Red Line 0W-20 will probably have
thicker viscosity after severe condition usage than some 5W-30's.
RL 0W-20 is 9.1 cSt's. You can find many WRX uoa's where a typical RC 5W-30 has sheared to a
thinner viscosity than this in as little as 2,000 miles.
PU 5W-30 actually holds up well in WRX's in mainly stock, highway (easy) driven cars (based on several uoa's by KHP on bitog). As for Amsoil, HDD 5W-30 Series 3000 is a very robust oil. The Amsoil SS, XL, and OE 5W-30's are typical girly man oils (with SS being slightly better but still shear prone).
-Dennis