Engine Oil

**Shane@DBPerformance** · 05-30-2010

Do not run Mobile 1 5w30, if you are making more than stock HP and don't want to spin a rod bearing or put a rod through your block. I personally wouldn't run any brand 5w30 or any Mobile 1 anymore. 4G63s are a bit more forgiving than some motors when it comes to oil, but I recommend most people run at least a 10w40 in the Summer.

**goodhart** · 06-02-2010

Quote:

Originally Posted by ecoli

Do not run Mobile 1 5w30, if you are making more than stock HP and don't want to spin a rod bearing or put a rod through your block. I personally wouldn't run any brand 5w30 or any Mobile 1 anymore. 4G63s are a bit more forgiving than some motors when it comes to oil, but I recommend most people run at least a 10w40 in the Summer.

I just noticed this thread had been bumped recently.

I just talked to Dan, the owner of the Blue 2JZ MKIII, and he said that his car was running Mobil1 when it spun the bearings. I think it ended up being like 1 rod bearing and 3 main bearings.