Quote:
Originally Posted by Need_for_speed
Steve, what oil were you running with?
Please allow me some dumb questions: would running with a higher viscosity oil for track work ameliorate the pressure dips? Would a high viscosity oil handle the heat better and cut down on aeration?
I like the idea of having a switch to run the fans on high on demand and I could swear that someone on the forum did just that. I'll have to do a search.
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I saw one theory, if a street car runs the oil typically at 200F, and on track it gets to 240F, they find a viscosity that at 240F has the same (I don't know the right word, "thickness?") as their usual street oil at 200F. On rennlist somewhere.
Mobile 1 5W50 is approved for our cars and Napa runs sales from time to time. A lot of folks run that on rennlist, and I guess being a 50 it has more "protection? I wish I knew the right word" at higher temp than a 40?
I am using Millers Nano 5W40, I just recently did my first oil change after 5900 miles and around 10 months (would have to check my records to very the dates) and it still had plenty of TBN and the rest of it was good as well. My initial plan was to draw a sample at 3000 miles and get a uoa but I forgot
At a 6000 mile interval, which was all hpde and driving to/from the track, dollarwise it is cheaper than the DT40 (not designed for track) with a 3000 mile interval. I'm looking forward to my next UOA on the millers, now that I'm on the 2nd fill so less cross contamination from the previous oil.