Quickie: 0w20 vs 5w20 / 5w30

[Ernest72]

Originally Posted by Somerandom18

Just go with https://www.cermastore.com/evo-synthetic-motor-oil.html and never worry about it again.

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I would if I was worried but my real world experience has shown there is no need to spend that much money on oil for a DD.

There are people with performance cars with well over 100k that use dyno oil and just regular oil change intervals.

Just find a good oil and interval and stick with it.

[bluesubie]

Originally Posted by WWFT86

Check out this link from Subaru Japan's website. Some Google translate may be needed if you don't read Japanese
http://www.subaru.jp/accessory/engine_oil/engine_oil/

and out of all these options it seems this 0W-30 is the bet all-around (e.g. cold weather starts, high temperature engine protection, bumper to bumper stop and go traffic), and lists BRZ specifically listed as a suitable car:
http://www.subaru.jp/accessory/engin...miumoil01.html

Specifically that 0W30 is a thicker 30 grade since it meets Euro ACEA A3 specs. Similar to Belgian Castrol 0W30 except that BC only meets the older API SL spec.

Subaru Japan can recommend thicker oils because they don't have to worry about huge CAFE fines if their fleet doesn't meet minimum MPG standards. Tiny mpg differences by recommending thinner oils in the US can lead to big $$$$ for Subaru of America.

And how many times are you going to bump old threads to post this?