i just did my oil change and used for the first time royal purple. i am very impressed with the out come of this oil.

i would like to put the royal purple diff fluid in, but i cant find any.

anyone know where i can get some royal pruple diff fluid

 

I've used RP for a long time now. It's great stuff. There is nothing about it or any other synthetic that is harmful to a rotary or any other engine anymore so don't let anyone get on here to try to convince you otherwise.

 

I recently started using it, it's awesome! I use the 20W50. It's hard to find and expensive, but WELL worth it.

 

rofl, that's all i have to say.



what is so impressive about engine oil?

 

cause its purple and not brown come on Ben get with the program geez

 

oh i got it..

poo=brown!

dayum i feel smarter.

 

Carrying the bottle alone in your car adds like 2.3hp. YOu didnt know?

 

some people really would try to have others believe that too... i feel like my breath is wasted sometimes.

 

Royal Purple seems like such a waste of $$ when Castrol GTX works perfectly....

 

i can see maybe running it in the diff or even the gearbox but not in the engine, the diff and tranny get serviced every 30k not every 3k.

 

If you can't find Royal Purple for the diff and transmission, then try Amsoil. I've had great luck with the Amsoil synthetic 75-90. My only annoyance is that it used to be this nice blue colour, and they seem to have recently changed it to the standard gold colour.

Since using it I've noticed the transmission is more quiet, shifting is easier and the floor next to the transmission is cooler.

Personally I just put generic Penzoil 10W-30 or 20W-50 into the engine. Spending high dollars on Royal Purple or other synthetic seems a little crazy when the oil gets changed ever 4000 or so KM and has to be topped off before that...

 

You definitely can't go wrong with synth in the trans and diff. I did this to both my RX-7 and 300ZX and they definitely shift much smoother.

I don't use it in the engines of any of my car's, the whole synth no good for rotary, my piston cars don't get many miles so I think it's probably a waste.

If I had a piston car I planned on keeping a long time then maybe...

 

Redline make excellent gear oil.

I also dont bother with high priced synthetics for the engine. Just good old cheap 20-50 GTX. Since it gets changed after every track event (less than 1k miles) it would be like throwing money away to use expensive oil.

I run nothing but mobil 1 in my truck which goes 5k miles between changes.

 

I use Royal Purple in mine, it definatly does a great job, my engine just feels alittle more healthy overall.

I've yet to find the differential/tranny fluid though, gotta keep lookin for that.

 

I swear my TII runs cooler with synthetic oil. Microtech before read 88deg and now its 84deg. It might just be the weather or because I’m messing with the tuning.

This is put putting around the block haven’t drove it hard yet.

 

Yeah why use it at all? Just use peanut oil. Oil is oil right? Just go to Walmart and buy the cheapest stuff you can find. It's all the same right?

I know there are doubters about synthetics as well as uneducated people who say they are no good in a rotary. All of you guys need to go do some homework to actually learn what makes a synthetic better. Actually just go do a search for what the differences are between the 5 different groups of oils. There are big differences. I'll give a small hint as to but one important aspect and that is purity of the base stock. i'll leave the rest at that. Then someone go find out what actually makes a synthetic "synthetic" as opposed to not natural. All I know is that if I ever need a blood transfusion, I want a good blood that has been very thoroughly screened and tested. I don't want some random blood in a jar that is lying around. After all, what's so impressive about blood? Why is any one better for me than another? A few impurities in the blood can't possibly hurt me in the long term. It's a good analogy.

 

i never heard anyone use an example like that with blood about oil i use castrol gtx 20 50 and i like it but i dont think royal purple is for me only because its to expensive when i change my oil every 3,000 miles like others said but i would be interested in getting some gear oil from them i might go with them next time i change my fluids

 

My big thing isn't to necessarily insult conventional oils or say they are bad. We've been using them for a very long time. I just like to dispell the false information going around that synthetics are bad for a rotary engine. They aren't by any sense of the word. There are many things they do better though. If conventionals are your thing, keep using them. Just keep using oil!

Just remember that all motor oils must meet certain requirements and test standards. Many race oils don't have certifications but this doesn't make them bad. There are various reasons why this is so but not necessarily because they can't pass. The thing I like to point out about test standards is that they are MINIMUM standards. Any oil that meets these standards is like a kid in school who gets by with at least a D- average. He passes which means he is approved and his performance is acceptable. There are many that outperform him though. I'd rather trust the honor students.

 

if you want to toss thousands of dollars at your car in synthetic oil changes over the span of its life to make yourself feel better about using "good blood" in it then go for it. calling me uneducated on the subject, well that is in your perspective, in my perspective you are wasting your money.

having been an auto mechanic for 15 years and run my own shops i would hardly call uneducated on the subject.

i never mentioned anything about synthetic in the engine being bad, i have no clue where you read that into it. my whole point was and has been it is just a waste of money for a marginal difference.

 

It’s only a waste if you can't afford it.

Why do manufactures recommend synthetic oil?
Are they getting kick backs from oil companies?

 

just like name brand parts you put on your car, it makes you feel better that they are there but a cheaper part that you also trust will probably hold up just as well but cost much less. some people prefer to save the money from many name brand components to perform more upgrades for even more performance, it just depends how level headed you are when purchasing things rather than taking a salesman's word for everything.

of course the manufacturers make more money off synthetics but they also require more work to make since there is many more processes in creating it then dino oils.

 

Again, you buy what you can afford.

Look at car wax; look at the price difference between the cheapest and the most expensive.
That can easily be 100 bucks and they both do about the same thing but if you can afford the $100 wax you’re surely not going to buy the $5 wax.

 

if it does the same thing, you sure bet i will buy the $5 wax.

your mindset boggles me.

why do you think so many enthusiasts are poor? because they have been trained to waste money.

 

Then you can't afford the $100 wax....simple as that.

If I could afford a Lamborghini I would have one, doesn't get much easier than that.

Sure if I need a part and only a "cheap" part is available then that’s what I would get but I always buy the best that I can afford. Sure sometimes you can spend less and get more but that is the exception to the rule.

 

I meant to say auto manufacturers.