What oil do you use and why?

[wfedwar]

German Castrol synthetic 0W-30. Best oil available OTC in North America.

[Infraggable Kru]

royal purple for my baby

i gained 1-2mpg !

[Spali32]

I use Amsoil full-synthetic oils. Use Amsoil in all my cars in the past 8 years. They were the #1 Full Synthetic oil to come out first and still going strong.

[CumminsCrazed]

AMSOIL here as well!!

[rsevt]

Castrol Syntec for my daily drivers and Mobil 1 for my summer car as approved by the manufacturer.

[paul34]

Pennzoil Platinum 5w20. I switched from Mobil 1. Not only cheaper, but seems to be better as well as returning 1-2 more MPG on average (although that may be due to my switch to Shell gas, among many other factors).

[mburnickas]

Originally Posted by wfedwar

German Castrol synthetic 0W-30. Best oil available OTC in North America.

I do not know about that. Example, I can buy Redline and Amsoil OTC..Best is what you are trying to get from it (oil).

[wfedwar]

Originally Posted by mburnickas

I do not know about that. Example, I can buy Redline and Amsoil OTC..Best is what you are trying to get from it (oil).

Agreed. GC, Redline, Amsoil are on the same level. Never seen the last two in stores, though. You've got better retailers than me. GC is available at Autozone.

[quakerroatmeal]

Just did my oil change today. I have always been using Mobil 1 10w30 Full Synthetic oil, heard it's synthetic blend now, but they have Mobil 1 Full Synthetic, and Synthetic blend, so I'm not sure I used the full synthetic though.

[vwgtivw]

Pentosin Pento-High 5W40 in the Jetta and Valvoline Premium Blue 15w40 in the F-350.

[itb76]

Originally Posted by wfedwar

...You've got better retailers than me...

Agreed, I can buy Red Line OTC, but the counter is 5 hours away & limited hours.

[.hondajake]

castrol syntec 0w30 /thread