Engine oil Castrol or VALVOLINE

Both of my Guzzis ran better on Valvoline. This is if you’re in USA

I've been using Castrol GTX High Mileage for almost 10 years in my 2009. I've always done 10,000 mile changes and I've got 298,000 miles on it. Blackstone tests on my 10,000 mile oil say it should be good for another 2000 miles.

I'm using Valvoline 0W-20 Restore and Protect, changing every 4,000 miles. '23 OBW, 56,000 miles. FYI, I did an oil analysis at my last oil change. Wear numbers were excellent, less than 1.5 ppm/1,000 miles. 3 iron, 2 aluminum, 1 copper over 4,128 miles. Fuel dilution was HIGH though, at 4.3%. They expect 1.5- 1.8% for direct injection turbos. According to the Motor Oil Geek, less than 5ppm/1,000 miles is considered good. I do a fair number of short trips, but also some longer runs. I'm going to go to max of 4,000 miles due to the gas dilution.

Always used Castrol in my cars when I\u2019ve had the choice and never had a problem.

I’ve used it, no complaints.

On my previous car, a VW Golf 7 2.0 TDI I used to change the oil (Castrol 5W30 Long Life) every 12000km.

One oil that seems to work from all the videos I've watched for cleaning varnish is the Valvoline Restore and Protect.

I use this on my Hyundai Elantra for the past 100k miles ... It's already at 200k and the engine still feels new ... I use Valvoline for everything including power steering ... Valvoline syn blend is a great oil option ...

Castrol is fine

I do believe that Valvoline R and R can cause oil leaks. I have noticed that in a couple of cars.