quote:
Originally posted by buster:
I have no problem believing it's used in NASCAR for qualifying runs and then they shift to a 50wt maybe. I don't think these guys run 500 laps on a 10.3 cSt oil.
Like Molekule said, what we've seen with the lighter oils are extra additives. Look at Mobil 1 0w-20 putting up outstanding UOA's yet it only is a 2.6 HT/HS.
I would have much rather seen a A3 rated oil. Redline looks more appealing everyday.
Well, I'm no oil guru (and I don't need to be), but I really had a hard time believing this oil, which is now available to Joe Q. Public, was "EXACTLY" the same oil run by the big dogs at NASCAR. Terry's post where he showed us a racing oil's UOA looked much more like it. I'm willing to bet my reproductive system (
) that the NASCAR guys run very tricked out and HIGHLY secretive oil formulations. They are very carefull not to give away their shock, camshaft, gear ratio and maybe even tire air pressure specs (among others), why would oil formulations be any different....considering that at 9000+ RPMs, oil DOES make a difference....not only in protection, but also horsepower, fuel mileage and elapsed time. In fact, I think they covered this a few years back on "NASCAR Garage", where the guy was saying they may use a given company's base stock, but the oil is custom blended to their specs.
I have no doubt, that for qualifying, a very light oil is used to gain the extra thousand of a second in order to get that desired pole position. Qualifying engines ARE NOT the raceday engines, so all they need is a light oil for a few laps.
My guess is that the endorsement that was given to this oil by that NASCAR driver, is nothing more than an endorsement from someone being sponsored and/or paid by Mobil.
Ultimately, UOAs will tell the tale!