Owner reviews for engine oil

Amsoil in everything I ever owned. My 2017 RAV4 hybrid is sitting on 350k miles and still running strong.

Petronas Syntium 5w 30 on a mercedes and audi a6. No complaints at all, and good price

I used to have castrol but since i chiptuned my octavia i switched to ravenol and the oil temps went down a good bit and it doesnt use any oil but that could also be because the old oil was 0w20 and the new one is 5w40

Castrol a good engine oil, albeit more expensive. Stopped using them when the price went up significantly

Last month I replaced the valve stem seals and it helped massively with the smoke. It doesn't really smoke much anymore, there's definitely still small puffs when taking off quickly, but nothing that I can see in the mirror.

I run amsoil in the engine and primary and redline in the tranny. No issues, my glide runs better on the amsoil then when I the syn3 in it

I've been using this exclusively in 3 of my cars. 2004 ford mustang, 2008 Chevy Suburban and a 2015 Mercedes CLA 250. All cars are over 120k on the clock and none have any excessive wear or leaks. I change the oil every 5 to 6k miles. No problems yet. It's a very solid product.

It’s all I use. No issues, I can’t say for sure if it made any difference with anything but I trust it.

A bit in the expensive side, but I use it and several Liqui-Moly products.

I used it often this product and like it very much. (I used it in my 2005 E320 CDI; I haven’t used it in my W123).

I run 5w40 syntec and I eat about 1/2-3/4 oil every 5,000 miles. It will eat it more if I drive it really hard.