Owner reviews for engine oil

I'll use my Valvoline happily.

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.

Amsoil W20 I got a 5.7 it’s been great to me

Amsoil Signature Series 0w40 is an outstanding oil I run it with the SRT filter.

Personally I've mostly been using Mobil 1 15w50, as it's almost never run in the winter.

Mobile one full synthetic hands-down. I have a 2004 Toyota Corolla and a 2007 Toyota Tacoma I’ve owned both since brand new and now both have over 260,000 miles apiece . I have only used Mobil one full synthetic changed every 5000 miles. just took a bore scope to look into both engines a few months ago. They look like they’re brand new. Almost no varnish. Absolutely no sledge, never had any problems whatsoever with these vehicles. It’s insane.

my vehicles use only Mobil 1 oil.

Prefer 10w40 full synthetic only.

Installed new oil and filter, plus BG oil flush, ran at idle for 30 minutes (warm-up, plus 15 minutes). Changed oil and filter again, using Mobil 5W40 Euro oil.

It’s absolute trash, stop using it.

A little back story I just recently did an oil change in my ‘20 WRX, was using Valvoline full synthetic and decided to try out Motul, noticed my oil temps went up 4-6° and started doing some research into oil. Discovered that Motul ranks 177 out of 244 oils tested for wear protection, Amazon basics and Walmart ranked higher.