Originally Posted By: lazaro
Originally Posted By: NHHEMI
Originally Posted By: BuickGN
Run RP in your grocery getter. Maybe even the thicker RP in a higher performance engine. One thing you will not find with Amsoil is the absolutely terrible used oil analysis in ultra high performance motors that RP has shown. I would run water in my GN before I ran RP in it.
You are certainly entitled to your opinion. I have run RP in plenty of high powered muscle cars( 383/440/426 MOPARS, 455 Olds, and 396/454 Chevy )and drag/bracket racing cars( mostly small block MOPAR, GM's, and Ford's - couple big blocks ) and never had any issues. I even know people who ran RP in the GN's and never had problems.
Good luck with the that water in your engine.
when I decided that mineral oil was a waste of my time I bought a case of Royal Purple to put in my 1967 Mustang GT with a 428 CJ and the minute I cranked up the car, I had to re adjust the idle to a lower rpm. I noticed the improved throttle response and I knew mineral oil was eating away at my wallet every minute it was in my drivetrain.
I dont think Royal purple is a bad choice it just cost me more to buy that what I buy now.
I have a few freinds that have GN buicks that would love to race BuickGN all day long, too bad your too far away
Most would probably beat me lol. It's gone 10.60 before but it was never dyno'd. Now I've dyno'd it with the new combo but never run it at the track. Got it down to 3,100lbs though so it should run pretty good.