babbage1109

iTrader: (11)

Hey sidenote off subject egott do you like the BFg KdW2 on your rears? Thinking about getting some.

Other note. Could rp not get the ase certification because it's considered a race oil by chance? Just a thought

dontsleeponme

iTrader: (1)

honestly I dont remeber but I do remember it effecting it

egott_91

iTrader: (1)

Yes, I do like them. They hook well and are meaty as hell.

I never thought about RP being a "race oil" that could be why it's not certified.

babbage1109

iTrader: (11)

That's what I was thinking at least. The way the oil is built could be the reason IRS not certified since it's for racing applications supposedly

Starz T/A 17

iTrader: (6)

X2, if you look at RP's website it talks about how much power and MPG's their product can have without any real science behind if as to what exactly separates their product from other synthetic oils. Its all snake oil, just like K&N's 15 HP filters.

hitmanws6

iTrader: (20)

Shearing, cost, availablity etc. I saw no difference going from a 0W 30 to 5W 30 RP. Its a higher quality oil, thats why it costs more

fccs

iTrader: (26)

From my experience it isn't that it's a bad oil, it's that its changed over the years to a normal everyday synthetic oil.. With the price of amsoil. Amsoil actually IS one of the best if not THE best oil out there, not to mention they aren't much more money then RP, so why go with RP? I used to use RP a couple years ago, been on amsoil for the past 3 years, run 10w30 race oil in the trans am and normal 10w40 ams oil in my acura for DD.

BoricuaHec01

egott 91: Where do you get your Amsoil from? There's a few dealers near me, but they're resident homes, do I pick them up from there if I call them?

flintwrench69

iTrader: (11)

They make 2 different kinds of RP. The kind they sell at MOST auto parts stores, including autozone is the lowest grade, basic synthetic oil. The XPR RP is the racing oil & is much better( & costs more too) as it has a higher ZDDP content. You usually have to order it online. I thought it(the store version) was a great oil from a few "tests" I read about & a local performance shop recommended & sold it, but that shop no longer sells it. My experience with the store version of RP is its expensive, it gets dirty quick & darkens engine internals terribly, almost to a point of a sludge coating on everything. No, its not certified either. I switched to Pennzoil Platinum since.

senicalj4579

iTrader: (41)

Royal Purple is over priced nonsense IMO

thunderstruck507

iTrader: (18)

From the reading I've done it's no better than good syns like Castrol Syntec and Pennzoil Platinum, but costs more.

It's also reported to break down under heat a lot quicker than other good synthetics.

I won't run Mobile 1 either, it's low viscosity and the fiasco surrounding it's base stock a few years back turned me off. I just catch Syntec or PP on sale and use those. Much cheaper and they're good oils.

Mr Incredible

Many people would rather pay extra for what they perceive to be better (it must be better, look at that price!). If they would learn more about oil in general rather than just looking at a product web site they probably wouldn't spend that much.

When you buy the expensive hammer, you can usually se why it's a better purchase. Oil, not so much. More research is involved, which separates the informed consumer from the impulse buyers.

BoricuaHec01

I have Castrol Syntec now, will try EDGE on my next change, havn't tried anything else.

HoLLo

iTrader: (17)

For me, many other brands have been proven well more than RP.. I stay with Mobil 1.

However, I have been using RP gear oil in my differential for quite some time now.

Mattn

from a good family friend he says the only true synethic oil out there is amsoil.but for me i just have castrol put in from my local shop.i notice though there only doing 5 quarts.should i ask them to do at least 5.1/2 quarts or 6.

BoricuaHec01

I did 5 1/2 when I filled with Castrol. I wouldn't mind trying out Amsoil though.

TheSilverOne

iTrader: (22)

my amsoil dealer is at his home. just call first to make sure they have what you want.

BoricuaHec01

That is possibly the weirdest **** lmao.

Bramlok

iTrader: (7)

When I bought my SS new in 2002, I changed it out to Mobil 1 5-30 for the first 3 or 4 oil changes. It had about 10K miles at that point.

I saw an advertising for Royal Purple and decided to give it a try. This is going back about 10 years ago and I never heard anything bad about Royal Purple then. Only thing I new about it is what I heard or read from the advertisements.

At first I thought it was just me, but the engine sounded louder. Piston slap and valvetrain sounded much louder. After about 200 miles I decided I wasn't hearing things and it DID get louder running with Royal Purple in it.

I dumped it out and went back to Mobil 1 and it sounded much better. The Royal Purple experiment was over and I never bought the stuff again.

My current F body is now running Amsoil and I have no complaints with it.

Exeodus

iTrader: (1)

Take product claims and certifications with a grain of salt. ASE certified holds as much stock as a Geek Squad tech that is A+ certified. Industry claims about power increases is similar to TV manufacturers comparing contrast ratios in their advertising, even though there is no standard when claiming one ratio is better than another.

I say try different versions yourself and draw your own conclusions. I am currently running RP for the first time and havent noticed any real difference from the Pennzoil Synthetic I was running before except that valvetrain does seem noiser now than before. But I can't be certain that the RP is the cause.