Is Royal Purple Really That Good?
01-20-2013, 07:54 PM
#11
Join Date: Jan 2013
Location: New Jersey
Posts: 4
Not sure if this will help. I've been running RP in my 06 MINI Cooper S for about 5 years now. I've sent my oil off to be tested a few times, and tests come back fine. I use it because the car runs cooler when I use it. I've ran other oils, but the operating temp is always higher. I'm sticking with RP now. I've never had a dyno test, but it does seem peppier as well. That could be in my head. I'm also running RP tranny fluid, and I can tell a difference from that as well.
01-28-2013, 03:54 PM
#14
2nd Gear Member
Join Date: Oct 2011
Location: MD
Posts: 445
Fact is, there are only a few oils that are TRUE synthetic oils. Royal Purple, RedLine, Amsoil and (there is another one I think but my brain just stopped...it's late in the day.)
Your Mobil1s, Pennsoils, Castrol etc are NOT TRUE synthetics. They are actually semi-synthetics. If I were to switch to a TRUE synthetic, I would go with Amsoil. I use their stuff in my truck (other than actual engine oil) and they do a wonderful job. My Trans, both diffs, powersteering, etc is ALL Amsoil. Truck leaks/burns too much oil for me to justify spending 4X as much on oil when I'm buying 15qts of 15w40 at a time.
Your Mobil1s, Pennsoils, Castrol etc are NOT TRUE synthetics. They are actually semi-synthetics. If I were to switch to a TRUE synthetic, I would go with Amsoil. I use their stuff in my truck (other than actual engine oil) and they do a wonderful job. My Trans, both diffs, powersteering, etc is ALL Amsoil. Truck leaks/burns too much oil for me to justify spending 4X as much on oil when I'm buying 15qts of 15w40 at a time.
02-16-2013, 08:44 PM
#15
Join Date: Feb 2013
Location: Kansas
Posts: 3
When bought my mustang with 120k on it, the first thing I did was to change all the fluids to royal purple. they are a great company based out of texas with awsome customer support, I called them to figure out what fluid would work best in my 5spd and he recomended synchromax, b/c that is what he ran in his boosted cobra. my trans. seemed to go in and out of gears better after a couple days. In my opinion it is worth the money.
03-16-2013, 09:04 PM
#16
Coincidence that I happened to be on here when you revived my thread. That's interesting. Not sure what the price difference would be between Mobil one and royal purple. I would still like to see it done with factory fluids for comparison. Wonder what the up gain would be on a car with 50000 miles.
03-16-2013, 09:27 PM
#17
5th Gear Member
Thread Starter
Join Date: Apr 2012
Location: Colorado
Posts: 2,793
03-18-2013, 08:50 PM
#18
2nd Gear Member
Join Date: Mar 2012
Location: CO
Posts: 310
I know my manual tranny seemed smoother and shifted better when I initially put RP in over the stock oil. I am starting to think I may need to go back to a regular synthetic though.. not sure why, just feels like there isn't any oil in there, kinda like it is breaking down...?
If I were you, I'd stick with MOBILE 1 synthetic for the motor oil, plenty of history for long running engines on that. Seems to be some spotty stuff with RP. Best of luck whatever you decide.
If I were you, I'd stick with MOBILE 1 synthetic for the motor oil, plenty of history for long running engines on that. Seems to be some spotty stuff with RP. Best of luck whatever you decide.
03-19-2013, 06:43 PM
#19
2nd Gear Member
Join Date: Jan 2008
Location: Connecticut
Posts: 181
When bought my mustang with 120k on it, the first thing I did was to change all the fluids to royal purple. they are a great company based out of texas with awsome customer support, I called them to figure out what fluid would work best in my 5spd and he recomended synchromax, b/c that is what he ran in his boosted cobra. my trans. seemed to go in and out of gears better after a couple days. In my opinion it is worth the money.
