Redline has made noticeable difference across a few engine platforms for me, but these were not engines going into daily street driven vehicles though. I've used it in a Ram Rebel as its daily fill, a Hellcat for its daily fill, and a Subaru XT as break in oil as far as daily drivers are...
Put 60 miles on it today, it seems just as smooth as the Redline that was in it. I'm just wondering how shear stable it is. I do quite a bit of travel from 6k-12k feet and climb some steep grades for miles at a time in some decent heat. So far, all is good. I guess once it kits 5k, I'll pull it...
Finally finished breaking in a new 2020 Outback XT with Redline. Decided to try out this new Valvoline formula along with a Fram Ultra. Hope the bypass boogieman doesn't get me! Is my car going to explode? I though someone on here did either a UOA or VOA on the 5w20 or 5w30 but I may be...
Still not explaining the original question, only quoting information that pertains to race cars. Do you really think a Subaru Outbacks engine performs the same as a pro stock car that gets torn down about every 5-6 runs? This should be a simple question yet nobody, not even Subaru will answer it.
Stick with a 40wt. If it’s a track car stuff some Red Line in it for extra insurance. How often does the car see the track and what type of events mostly?