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https://www.nulon.com.au/products/race-oils/full-synthetic-5w-30-racing-oil https://www.motul.com/us/en/products/300v-power-racing-5w30--2 I have a large ci V8, 950HP NA E85 all-aluminium road racing engine (Dailey dry sump, 5-stage). It's not a max effort build, it was specifically built with...

I just bought a car with a fresh professionally built engine. It's a 1969 Pontiac 461 stroker, a Butler Performance kit. It was assembled by a local race shop for the previous owner in TX. They did 2 or 3 pulls on the engine dyno and now it has 100-150 miles on it since being installed into the...

I bought another new Ducati superbike but the dealer I used this time seems to really be behind Motul 300V. In my last Ducati and all of my vehicles for that matter, I run Redline. I really know nothing about the Motul 300V. Is it a group IV or a group V? If it's a group V, how does it really...

I just rebuilt the 265ci V8 in my 1956 Corvette. I reused the original flat tappet cam & solid lifters (in the same bores). Did a ball hone on the cylinders and used cast rings. I filled it with Royal Purple Break-In oil. I am hearing conflicting things on the internet and want to ask you...

I just placed an order for 2 bottles of Auto-Rx. I have a 210,000 mile 1992 Pontiac Trans Am GTA that has only run Mobil 1 (0-70K miles) and Royal Purple (70K-210K). I read that I am not supposed to use a synthetic oil during the “clean” phase with Auto-Rx. I presume however that this refers to...

I just joined after doing allot of research online and on this forum! Here is my first question... I just bought a brand new Ducati 848 superbike, wet clutch. I am going in for my initial 600 mile service on Tuesday. After allot of research I have bought an Amsoil oil filter and Redline 10w40...