I am just wondering if anyone out there has some experience with higher viscosity oils. My oil pressures are dropping dangerously low at idle. I installed a 7psi safety switch on my motor just in case my oil pump belt were to ever fail. I was out with a buddy today doing some tuning and my safety switch activated twice at idle. Once the revs come up the oil pressure jumps up as well. The car has dome oilers, 180 degree main oiling and the two turbos. I figure there is just too much there to maintain oil pressure once the oil is hot. The engine is dry sump with the largest pressure section I can find. When cold oil pressure maintains a solid 75 psi. I am currently running 10w-40 conventional for break in. A buddy who runs a local speed shop says they have been having great results with the new 10w-60 wide range synthetics and recommended that I try them. I hate to use something so thick for fear of inadequate flow but many of the high performance oil companies advertise these for high performance turbocharged/supercharged applications. Any ideas??
Blaine
Original Post