dbox

anyone use it?

what do you think about it?

fender4

when they release test specs and I compare to this chart,, no comments

http://www.unofficialbmw.com/all/misc/all_oilfaq.html

sidemarker

i use it! i think it works great!

sidemarker

moomaster_99

Isn't it like $14 a quart???

dbox

no royal purple on that chart...

i assume your an amsoil man?

dbox

same price as a synthetic oil change at kwik car... 58.00

moomaster_99

I don't really believe in all that stuff....i can understand bikers all swear by it....due to the high revs they put their bikes thru...but on a car....Mobil 1 is fine....at $5/quart....just change your oil religiously...and get a good filter.

fender4

Yes and no,,, I researched the basic question WHAT is the best synthetic oil,, My job in the Defense Aeronautics Industry is to research various lab tests and determine what can be put on my airplane,,, soooo by lab tests and by a vary small margine, Amsoil wins,,, but it's like comparing diamonds,,, now it's not the best,, that would be a base stock of Eister (sp),,, this is usually about $30 per qt,,, soooo staying with PAO base stock, only Amsoil promotes extended drain interval's. I change mine at 10k miles and the filter at 5k miles,,, but I send it to the lab for analysis. I have more but this is getting to long,,

360

Royal Purple rocks. check the sight out.
click the hot rod tv and horse power tv they do a dyno before and after they use royal purp. ( they use the tranny stuff and gear lub too but still amazing)
http://royalpurple.com/rethome/rethome.shtml

Recent independent tests by major universities and high performance automotive TV shows and magazines clearly document the superior performance of Royal Purple® Motor Oil.


400% Greater Film Strength - reduces wear1
300 - 500% Greater Oxidation Stability - increases oil life2
1.5 - 3.0% Increases Engine Horsepower and Torque
3.0 - 5.0% Saves Fuel over other "energy conserving" oils
> 20% Reduces Harmful Exhaust Emissions

Summary of Tests3*

Data Source: Oklahoma State University - 2001

Description of Test: Royal Purple® 15W40 vs. major brand 15W40 engine oil on full chassis HD truck dynamometer5.

Engine Type Fuel Savings Emissions Reductions Performance Improvement
Diesel 4.4% Smoke Opacity (SNAP Test)
22% Horsepower
2.8%


Data Source: North Carolina State University - July 2002 >> See the Full Report

Description of Test: Royal Purple® 5W30 vs. major brand "energy conserving" 10W30 motor oil in 25 vehicle fleet test (North Carolina Highway Patrol).

Engine Type Fuel Savings Emissions Reductions Performance Improvement
Gasoline 2.5% (not part of the original test criteria) (not part of the original test criteria)


Data Source: North Carolina State University - July 2002 >> See the Full Report

Description of Test: CLR Research engine test, 15W40 motor oils.

Engine Type Fuel
Savings Emissions Reductions4
Royal Purple® vs.
major brand mineral oil Diesel Soot NOx CO

--------------------------------------------------------------------------------

3.68%
@1200 RPM

2.48%
@1600 RPM 11.75%

17.58% 8.5%

(6)% 17.7%

21.0%

Royal Purple® vs.
premium synthetic oil Diesel 3.37%
@1200 RPM

1.48%
@1600 RPM 4.3%

3.0% 7.2%

same 28.15%

33.87%



Data Source: North Carolina State University - July 2002 >> See the Full Report

Description of Test: CLR Research engine test, 5W30 "energy conserving" motor oils.

Engine Type Fuel Savings Emissions Reductions4
Royal Purple® vs.
major brand mineral oil Gasoline 4.5%
@1200 RPM

5.0%
@1600 RPM
NOx was over 50% lower @1200 RPM where complete combustion occurred. CO levels with RP were low at all loads - RP tended to prevent incomplete combustion.
Royal Purple® vs.
premium synthetic oil Gasoline 2.5%
@1200 RPM

3.0%
@1600 RPM



Data Source: North Carolina State University - July 2002 >> See the Full Report

Description of Test: EPA 75 (city) and HWFET (Highway Fuel Economy Test) tests comparing a major brand 10W30 "energy conserving" motor oil to Royal Purple® 5W30 motor oil.

Engine Type Emissions Reductions4
Gasoline CO HC NOx

--------------------------------------------------------------------------------

EPA 75
29% EPA 75
16% EPA 75
1%

HWFET
62% HWFET
19% HWFET
(23)%



Data Source: Hot Rod Magazine - March 2002 Feature Article >> Read the Article

Description of Test: Replaced existing mineral oil in new GM 383 V-8 motor.

Engine Type Performance Improvement
Gasoline Horsepower
1.7% Torque
2.0%



Data Source: "Hot Rod TV" - May 2002 / Hot Rod Magazine - August 2002 >> See The Video
>> Read the Article

Description of Test: Replaced existing 20W50 engine oil, Dexron III ATF fluid, and 75W90 differential fluids with Royal Purple® 20W50 engine oil, Max ATF® and Max-Gear® 75W90 in 400+ HP 1965 Mercury Comet, and tested on full chassis dynamometer.

Engine Type Performance Improvement
Gasoline Horsepower
2.5% Torque
1.5%



Data Source: "Horsepower TV" - May 2002 >> See The Video

Description of Test: Replaced existing 5W30 synthetic engine oil, Dexron III ATF mineral oil fluid, and 75W90 synthetic differential fluid with Royal Purple® 5W30 engine oil, Synchromax® manual transmission oil and Max-Gear® 75W90 in a 2000 Camaro SS and tested on full chassis dynamometer.

Engine Type Performance Improvement
Gasoline Horsepower
2.9% Torque
--


1 Film Strength based on comparisons of leading 5W30 vs. Royal Purple® 5W30 motor oil in Falex No. 1 "High Pressure" Test. (Scar widths. mm: leading 5W30 motor oil 5.9 mm - scored / Royal Purple® 5W30 motor oil - 1.4 mm - polished).
2 Oxidation Life based on U.S. Burequ of Standards TFOUT oxidation test (leading synthetic 5W30 oil - 409 minutes / leading 5W30 mineral oil - 246 minutes / Royal Purple® 5W30 - > 1300 minutes).
3 Complete test reports and magazine articles can be viewed on our web site shortly at www.royalpurple.com.
4 Terminology:
CO = Carbon Monoxide (a poisonous gas),
HC = Hydrocarbons (unburned fuel normally occurring where fuel to oxygen mixture is too rich),
NOx = Nitrous Oxide (cited as a contributor to smog, ozone, acid rain and regional haze and exacerbated by elevated combustion temperatures of "lean burn" engines where more oxygen exists than is needed to completely burn the fuel).
HP = Horsepower.
CO and NOx are typically on opposite ends of the same seesaw. When one goes up the other will come down.
5 Fuel and horsepower tests performed on 1996 Peterbilt truck with Caterpillar C-12 engine. Emission testing performed on Detroit Series 60 and Caterpillar 3176B engines.
* Some data fields are blank and contain no information because the data field was not a part of the original test criteri

dbox

i ask because i want to use it in the s2000. i fucked up and put in mobil 1 5w30 only to find out the car calls for 10w30. and since it redlines at 9k(motorcycle on 4 wheels) i went ahead and chaged it to royal purple 10w30. i'll continue to run 5w30 mobil 1 in the cl-s.

guy at the lube place says i can go 6k for every oil change with the purple stuff... i go 5k on mobile 1.

thnx for the replies

fender4

[QUOTE]Originally posted by 360
[B]Royal Purple rocks. check the sight out.
click the hot rod tv and horse power tv they do a dyno before and after they use royal purp. ( they use the tranny stuff and gear lub too but still amazing)
http://royalpurple.com/rethome/rethome.shtml



ok now check out the redline site,,, they found the same increases,,, why ?? they use a additive of moly that helps for the short term,, high rpm's,, most cars are run long term,,, lab results needed after 5 k miles to check the TBN number,,, the schools tests are consistent with most true synthetics,, they need to test three or four synthetics for a comparison and not to petro oil.


Red line doesn't list it's base stock in the MSD,,, saying it's secret is BS,, this is not a true msd,, they do mention a parfillin (sp),,, they were created by the chemical co when mobile wanted a least expensive PAO,, therfore this might put them in the same league as a base III type of oil, more research is definetly needed by me. (but not now)

fun reading here

http://www.synlube.com/synthetic.htm

johntypes

that all i have used for the last 2 years.

brianlin87

iTrader: (1)

it's bomb

Bluto

All syns are good. But, you to keep a good, clean filter, 5k or less.

Proof is in the real world analysis, not advertising.


fender4, what filter are you using?

fender4

I use the Amsoil SDF44 which is oversize. I had used a SDF20 normal filter for a 10k test, It held up fine. I change the oversize filter every 5k miles,,, only because I am on the 200k plus mile plan.