Royal Purple
03-10-2003, 08:03 PM
#21
Senior Member
Join Date: Oct 2001
Location: Peoria, AZ
Posts: 10,906
03-10-2003, 09:38 PM
#22
Member
Join Date: Nov 2002
Location: Orange County, CA
Posts: 37
Originally Posted by Rob x-7' date='Mar 10 2003, 02:22 PM
This is some of what was said after testing TCW-3 which is what everyone uses for pre-mix:
All of these engines were used on research boats. With the exception of the 200 hp, they all spent the majority of their time working at low rpms pulling nets or other gear. The Royal Purple was used on one of the 150 HP. It was dropped from the test after 50 hours. It smoked badly, fouled plugs, and generally made the crews nauseous. It was replaced by the Redline Watercraft oil. The change was dramatic, the smoke was reduced to almost nothing, the plugs were lasting 200+ hours, and the crews were happy
Another did a test of all different synthetics, the results of the wear test resulted in RP coming in at #10 out of 11.
I guess it doesnt matter, people will use what they hear from someone else to be best. I would say that Mazdatrix did what anyone else would do in thier position and went with the company who gave them the better deal. They probably werent making any money selling Amsoil because its fairly simple for any shop to get a commercial Amsoil account and buy right from them.
All of these engines were used on research boats. With the exception of the 200 hp, they all spent the majority of their time working at low rpms pulling nets or other gear. The Royal Purple was used on one of the 150 HP. It was dropped from the test after 50 hours. It smoked badly, fouled plugs, and generally made the crews nauseous. It was replaced by the Redline Watercraft oil. The change was dramatic, the smoke was reduced to almost nothing, the plugs were lasting 200+ hours, and the crews were happy
Another did a test of all different synthetics, the results of the wear test resulted in RP coming in at #10 out of 11.
I guess it doesnt matter, people will use what they hear from someone else to be best. I would say that Mazdatrix did what anyone else would do in thier position and went with the company who gave them the better deal. They probably werent making any money selling Amsoil because its fairly simple for any shop to get a commercial Amsoil account and buy right from them.
Still more justification for me to stick with good ol Castrol 20-50 Dino Juice
I believe you are right, most manufacturers will push whatever brands they get a better volume discount on...
03-10-2003, 10:19 PM
#25
Senior Member
Join Date: Nov 2002
Location: Colorado Springs
Posts: 1,679
This is really interesting. One thing that is never really clarified is the whole OMP vs Pre-mix thing. This is where i get confused, synth is good for pre-mix? While its bad for running an oil injection system? I don't see why it would be bad, i have seen motors that have run full endurance racing seasons (daytona-sebring-petit le mans) that have run on synth and you can eat off their motor parts, erstwhile the sister motor ran on castrol 40wt, and looked and smelt like a million mile diesel inside. Given that these are 4.0 liter Nissan's, and not rotary motors. So why would a synthetic motor oil be bad for a rotary motor? Ash?...i dont think so
just clarify the whole OMP synth debate with one clear answer for me
I do not give a ******* rats *** if you run pre-mix...i'm not ******* around with measuring out pre-mix 4-5 times a week (at least). I drive my vert 55-120 miles a day
just clarify the whole OMP synth debate with one clear answer for me
I do not give a ******* rats *** if you run pre-mix...i'm not ******* around with measuring out pre-mix 4-5 times a week (at least). I drive my vert 55-120 miles a day
