Ole Cowboy
TGT Addict
LOL, sez it all...when I had a sponsor I ran the decals and the partsI ran 20W50 Severe Duty AmsOil in my road race car.
I had plumbed a Setrab oil cooler with a ducted fan.
I'm not sure what the peak engine oil temp was ... the gauge only went 310*.
The Texas sun can be brutal on equipment that is run hard.
But I never had an engine failure in the 7 years I ran.
I also ran AmsOil in my tow rig ... only because I had a sponsor supplying it.
Once I left racing, I moved to Rotella.
In the CTS-V, Mazda Speed 3 and GMC P/U, I use Mobil 1.
And I always use a Wix filter.
High Mileage hype is full of detergents. If you've been using a quality oil and changing it often, it shouldn't be necessary.