[91cobra5.0]

Changed the oil in the car yesterday, I put 3000 miles on it and the weather is changing so I changed it and put royal purple 10w30 synthetic with a fram filter and wow I don't know if the old oil was really bad or really cheap cuz the car is performing soooo much better

[ryans88gt]

It's all in your head...

[91cobra5.0]

U sure? I didn't really expect any gain..... oh well

[The Novice]

Nice, what did ya use before hand, what Company?
How do ya think it proforms better?
Anything in particular?

Originally Posted by ryans88gt It's all in your head...

Ya really think so? I wouldnt know, i was debating switching to it when i can, but the engine isnt even in the car yet, do you not like synthetic? Just woundering your opinion.

[PowerShiftz02GT]

From Horsepower Tv they gained 8HP by using Royal Purple over Regular oil

[91cobra5.0]

Don't know what it was before cuz its the first one that I did since I got it, and it feels stronger cuz it wants to break loose real easy now

[ryans88gt]

Originally Posted by PowerShiftz02GT From Horsepower Tv they gained 8HP by using Royal Purple over Regular oil

Damn, must have been a really really accurate dyno. I've seen 8 hp gains just by sneezing and then redynoing...

Oil doesn't give you horsepower. Using a lighter weight oil can reduce windage power losses, but this comes with less high temperature stability.

[nba1341]

how much did it cost for enough quarts of royal purple to fill up?

[beheivjer]

i get rp for $5 a qt and run it in eveything, it does run alot better with it with better protection on the internal parts

[kuskye25]

the only times ive changed my oil and felt it ran better was when i was over due for a change, mainly though it cooled the engine better after the change... so if it was bad enouph that may be why it seems better

[White Thunder]

it should give you a few horsepower but its in your head for the most part like ryan said

[nba1341]

Originally Posted by beheivjer i get rp for $5 a qt and run it in eveything, it does run alot better with it with better protection on the internal parts

how much quarts does a 302 hold so i know how much to get?

[kuskye25]

Originally Posted by nba1341 how much quarts does a 302 hold so i know how much to get?

4 1/2 usually fills mine up so buy 5 quarts...

[tom2000r]

Originally Posted by PowerShiftz02GT From Horsepower Tv they gained 8HP by using Royal Purple over Regular oil

motor was still breaking in,,my 540 bbc was picking up power .when we heat & cool cycle it

[91cobra5.0]

Originally Posted by nba1341 how much did it cost for enough quarts of royal purple to fill up?

cost me 7$ a quart, it took 4 quarts and a can of restore (that tall can silver and blue, ment to protect engine and restore lost compression)

[The Novice]

Originally Posted by beheivjer i get rp for $5 a qt and run it in eveything, it does run alot better with it with better protection on the internal parts

Where ya get your's for $5 each at? Thats not bad.

[nba1341]

Originally Posted by 91cobra5.0 cost me 7$ a quart, it took 4 quarts and a can of restore (that tall can silver and blue, ment to protect engine and restore lost compression)

oh i got some lucas oil treatment ill use that with it too

[nolife]

Originally Posted by nba1341 oh i got some lucas oil treatment ill use that with it too

Playing chemist does not seem like the best choice. In my opinion, if the oil would be so much better with a second companies additive, that additive would be in the original oil to begin with.

You can take the results of this test with a grain of salt but here is a test (What about Additives?) of an oil with Lucas additive added. I do have a specific problem with this test but it still raises questions. Gases (regular air in this case) come out of solutions at higher temperatures and gases are not so easily absorbed into solutions at higher temperatures. If this test was done in a crank case of a running engine where the oil is hotter than room temperature, it would not be as bad. Either way, it shows mixing things just to mix them is not always the best solution.

[neverfastenough1]

Originally Posted by nolife Playing chemist does not seem like the best choice. In my opinion, if the oil would be so much better with a second companies additive, that additive would be in the original oil to begin with. You can take the results of this test with a grain of salt but here is a test (What about Additives?) of an oil with Lucas additive added. I do have a specific problem with this test but it still raises questions. Gases (regular air in this case) come out of solutions at higher temperatures and gases are not so easily absorbed into solutions at higher temperatures. If this test was done in a crank case of a running engine where the oil is hotter than room temperature, it would not be as bad. Either way, it shows mixing things just to mix them is not always the best solution.

I am with the proffessor. I don't think RP needs any additives. I don't use it yet, so I can't comment on the power thing. I will be switching though just to see for myself if it helps as much as said.

[91cobra5.0]

test was interesting but did you see how much trapped air was in that case, maybe thats y it got so much air???? and if it did that inside your engine then it would be white on your dip stick......... right?