04-18-2007, 03:43 PM
You guys didn't read in to everything I wrote 
Horsepower TV did a before / after dyno of a Camaro where they swapped out all the car's vital fluids (oil, trans, etc.) to *I think* Royal Purple synthetic and they showed a gain of about 12hp over their baseline IIRC. No other factors were changed.
Now, that is on an LS engine which is truly a gift from God. I can't imagine a Miata reacting that well to something so simple, but the point I was making is that it *is* possible to gain a bit of horsepower by swapping to high quality synthetic fluids.
Horsepower TV did a before / after dyno of a Camaro where they swapped out all the car's vital fluids (oil, trans, etc.) to *I think* Royal Purple synthetic and they showed a gain of about 12hp over their baseline IIRC. No other factors were changed.
Now, that is on an LS engine which is truly a gift from God. I can't imagine a Miata reacting that well to something so simple, but the point I was making is that it *is* possible to gain a bit of horsepower by swapping to high quality synthetic fluids.
Posting in the banalist of threads since 2004
2017 Mazda CX-5 GT AWD Premium
Past: 2016 GMC Canyon All Terrain Crew Cab / 2010 Jaguar XFR / 2012 Acura RDX AWD Tech / 2008 Cadillac CTS / 2007 Acura TL-S / 1966 5.0 HO Mustang Coupe
2001 Lexus IS300 / 2004 2.8L big turbo WRX STI / 2004 Subaru WRX / A couple of old trucks
2017 Mazda CX-5 GT AWD Premium
Past: 2016 GMC Canyon All Terrain Crew Cab / 2010 Jaguar XFR / 2012 Acura RDX AWD Tech / 2008 Cadillac CTS / 2007 Acura TL-S / 1966 5.0 HO Mustang Coupe
2001 Lexus IS300 / 2004 2.8L big turbo WRX STI / 2004 Subaru WRX / A couple of old trucks