castrol

This is a pretty cool comparison of how different oils KV100 and HTHS150 viscosities change after being sheered. They look at a handful of off the shelf oils along with some custom Grp3/Grp4 blends that focus in on specific VI compounds. Screen shot of results table below. What I’m curious...

Longtime lurker, first time poster. Thought you folks might be interested in some of the oil testing I’ve been doing with my 2019 Mustang GT. I’ve done a series of long drain interval, ~10k miles, tests using various 5W-20 oils but that info is going to take some time to put together so I...

I'm a bit puzzled about this oil's existence and I couldn't find any information about it on here. It's now being sold in my country as "The same great Castrol quality, now in smart bottles". What's so smart about the bottle exactly? On Castrol's site, they say this oil spec is for hybrid...

Hello, I reside in Canada I have a 2016 FWD Mazda CX-5 GX SKYACTIV-G 2.5L I4, I bought the Castrol high mileage 0W20 (on sale) for my next oil change which will be 93,000 km. Will it be ok to use it when it's not 120,000 + km? I've read other posts but couldn't really find what I wanted. Maybe...