I just put some RP in my 460 and all i got to say is damn, i cleaned the filter to but i do that every 2-3months and its like halfthrottle at just 1 fourth of the throttle. Also just wondering if anyone else is using it in there truck? Later

 

sounds impressive... I just picked up a'94 5.0 Flareside the previous owner used synthetic oil, platinum plugs and Hi octane. I would like to continue the tradition but based on your jubilation perhaps I should look into it(rp)I even thought about amsoil .Again I am new to this so I am curiuous about how well it perfoms

 

Rp is synthetic to, i think im going to put in the axles and the transsmission to. Its suppost to increse my gas miledge to ill find out in a couple of weeks i guess

 

I stood on it wall ago and all i got to say is damn again , it revs higher and pulls harder then it ever has. Im a believer lol.

 

Hard to find in most stores, so some pre-planning is in order.

Can't say I ever tried it. (read all used cars and trucks)

Mobil 1 is cheaper for me to run and find.

When I rebuild my 460 RP/Redline is what i want to run.

Thanks for your observations !!

 

Well, I have a couple of questions.

1.What is your criteria for calling RP a synthetic?
2.When you say it runs better and now it has all of this horsepower with just an oil change, why do you think that happened?
3. You say you are going to get better gas mileage, where did that information come from?
4. And last,meangreen2, do you sell or know anyone that sells Royal Purple?

Quack- Brain A, you're next- Quack!
Quack, MattXXL-you're next-Quack!

 

Royal Purple was featured in a Hot Rod magazine test claiming increased horsepower. This oil has always interested me but cost and availability has kept me from trying it. It is quite doubtful that you would gain a significant amount of horsepower from simply oil. Possibly if you were to combine this oil with a full tune up you would feel something significant.


To DDD if you want to continue the tradition of plat plugs, synthetic oil, and hi octane gas that’s fine but, you need to realize that plat plugs were probably OE and hi test is a waste on a motor that ford designed for 87.

 

Unless U have the truck I have, premium required or pay the dealer to re-flash the computer. (common fix)

My 98 has the FOU1 computer.

HP depends on how much friction exists in the engine.

I notice the biggest difference sitting in traffic, high heat.

Still believe its CHEAP insurance !

 

thx blurang94 . I hope to enjoy my truck I am pleased w/it so far.It all seems tight for 10yrs oldw/alittltle oxidation on the paint. would I harm it if I go to reg87 oct . after a 10yr diet of 93? you seem to have knowledge of the truck and it capabilities

 

I may have to retard the timing if u run 87

 

I got a friend that sells it, its not like its putin out a extra 20 hp it just runs smotther and revs higher,hmm. U can tell the difference you just have to try it for yourself. Also im running my truck on 93 i think the guy that had it before me bumped up the timing because it only runs good on 93. Later

 

To pro3qtr: I was not referring to your truck and its octane requirements but rather to a 94 302.

To DDD: I doubt you would have a problem going to 87 but the only way to know for sure is to try it. There is however a slight possibility that the previous owner adjusted the ignition timing to take advantage of higher octane gas. Then you could not run 87 without setting the ignition timing back to the factory spec. If the ignition timing was not advanced and you wish to continue running high octane gas consider advancing the timing 2* or so.


My comments on royal purple and its power producing abilities do not place doubt on its potential to make more power but rather the amount it can be credited for producing. 5W30 conventional oil will produce more power than a conventional 20W50 because of less internal drag. The same can be said for synthetic oils.

 

I think unless you absolutely need it, high test gasoline is a waste of money. Here's my reasoning. Higher octane gasoline will be harder to ignite in an engine designed for 87 octane. This will increase the rate of misfires, and decrease mileage. Power will not be significantly reduced because light intake charges are harder to ignite than delivered at full throttle. Also, 87 octane has higher BTU's than higher grades, so it delivers more energy when burned. So unless you need it, you're wasting your money on premium gas.

I also doubt your results with the RP. The psychological factor can be very important in percieved performance, and also can be an easy trap to fall into. You think something's going to work, so your brain alters your perceptions based on your preconceptions. In reality, I think you gained, maybe, 1 hp. The platinum plugs probably helped more than anything. When an engine is running, the biggest drag is from the rings, the accessories, the oil pump, and the valve train. Very little is lost in the bearings compared to the amount of load they're exposed to. Now if you have a thinner oil that's easier to pump through the engine, this will decrease the load on the oil pump. But this is not limited to synthetics, any lower weight oil will do this. If synthetics truely did increase mileage, auto manufacturers would require them for warranty usage to increase their C.A.F.E. numbers.

I'm not calling you a liar, far from it. I believe you did notice what you did. I just think the causes behind it are in your head, not in your engine.

 

Wow Curt U said it your self, Ford DID switch to a syn blend and lighter weight oil for better MPG.

Here is the FACT on Gas Octane:

http://www.ftc.gov/bcp/conline/pubs/autos/octane.htm

 

Ford switched to a lighter weight oil. They did NOT say it has to be a synthetic. Castrol offers a GTX in 5w20 that meets Ford WSS-M2C153-H. And it's a dino.

The information I provided about gasoline octane in my last post goes above and beyond what was explained in the link you provided, although the same conclusion was reached.