I've been searching through the boards and basically just need a suggestion on the best starting point to finding a better oil for my car. Engine in question is a 24valve, DOHC, 3 liter duratec, custom pistons (9.5:1), running 10-12 PSI of intercooled supercharger boost at 6700-7500 RPMs for extended periods on track days.
During my first/only track outing with the vehicle in current state of tune I saw oil temps registering 285+ after 6-8 minutes of hot lapping in 80-90 degree weather. I was running a small air-oil fin type cooler that is now being replaced by a nice Mocal stacked plate unit. Oil in during the running was standard M1 0W40 with less than 100 miles on it. Water temps were about 220-230 in the car all the time. Street oil temps regularly hit about 230-235 in the car during normal driving.
In addition to switching to the Mocal oil cooler, I want to switch to a different synthetic as I've since heard bad reports on the M1 0W40. I'm planning to switch to M1 Racing 0W30, Redline Racing Oil, or RP41 oil. I think the RP is probably my first choice after reviewing the forums.
Based on the above information is a 30 weight RP41 a good place to start (possibly stay if oil temps drop to 250 or less)? Also, what interval should I send in the oil for a UOA if the engine has less than 500 miles on it?
Thanks,
Rick
During my first/only track outing with the vehicle in current state of tune I saw oil temps registering 285+ after 6-8 minutes of hot lapping in 80-90 degree weather. I was running a small air-oil fin type cooler that is now being replaced by a nice Mocal stacked plate unit. Oil in during the running was standard M1 0W40 with less than 100 miles on it. Water temps were about 220-230 in the car all the time. Street oil temps regularly hit about 230-235 in the car during normal driving.
In addition to switching to the Mocal oil cooler, I want to switch to a different synthetic as I've since heard bad reports on the M1 0W40. I'm planning to switch to M1 Racing 0W30, Redline Racing Oil, or RP41 oil. I think the RP is probably my first choice after reviewing the forums.
Based on the above information is a 30 weight RP41 a good place to start (possibly stay if oil temps drop to 250 or less)? Also, what interval should I send in the oil for a UOA if the engine has less than 500 miles on it?
Thanks,
Rick