For my car: - 300V 5w-40 - RBF 600 brake fluid - Multi ATF For my brother's modded-for-speed Acura Integra: - 8100 X-Lite 0w-30 (top-off and next OCI) For a friend's modded-for-MPG Honda Del Sol: - 8100 Eco-Nergy 5w-30 For another friend's fully prepped E36 M3 race car: - 300V 15w-50 - Multi ATF - Gear Competition FF 75w-140 - RBF 600 brake fluid I've been testing Motul's engine oils for a while. The old X-Max was great; the 300V is awesome. I'm not as impressed with their Dexron III ATF (Red Line D4 was definitely better), but I'm looking forward to trying the Multi ATF. It's 1-2 cSt thicker at 100 degrees C than all the other ATFs I've seen. My brother's car was running GC before, and the X-Lite 0w-30 has eerily similar viscosity specs. Initial impressions are positive; UOA to come. Should be an interesting comparison. The Del Sol has the engine from a Civic VX, which was the uber-MPG version that came from the factory with a wideband O2 sensor and a lean burn mode. We're going to see if Motul's fuel economy oriented synthetic makes a difference over good dino 5w-30s. The race car has a race-built engine putting out 380 hp (NA). 300V 15w-50 should be overkill. I don't think the UOA will be very surprising. However, the transmission only holds 1.25 qts of fluid so it'll be interesting to see how the thick Multi ATF holds up at the track.