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Old 04-10-2012, 12:09 AM   #1
ASH302
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switching from mobil 1 to Royal Purple

so when i was swapping valve covers (which i should have gotten a picture) there was some junk (alittle bite, not much) on the springs and chite, so after my buddy caught it, told me i need to switch to Royal Purple, may cost alittle more, but worth the money, which i'm down to using the best stuff in my Mach, for sure worth it, it just kills me that mobil 1 would do that. i use 5w-20 and from the research i've done its suppose to be one of the best to use.
Has anyone else had this problem
my buddy has been a master mech for years, and i know he knows his chite
he also has a mach and has been on here, but not any more, so i trust what he tells me

ASh
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Old 04-10-2012, 12:29 AM   #2
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Re: switching from mobil 1 to Royal Purple

i have used royal puprple since i bought my car in 06, and i love it,works dam good.
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Old 04-10-2012, 12:29 AM   #3
Supra
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Re: switching from mobil 1 to Royal Purple

In my opinion, Stick to the Mobil 1.
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Old 04-10-2012, 12:39 AM   #4
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Re: switching from mobil 1 to Royal Purple

Shoulda seen my car when i swapped the intake cams. Diesel oil FTW. It had 85k miles on it at the time, and it looked brand spanking new. Not a single spec of rust, corrosion, black junk, nothing. Spotless.

I'd stick with mobil 1 5w30 if your not a diesel oil fan.
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Old 04-10-2012, 12:55 AM   #5
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Re: switching from mobil 1 to Royal Purple

Quote:
Originally Posted by Mach828 View Post
Shoulda seen my car when i swapped the intake cams. Diesel oil FTW. It had 85k miles on it at the time, and it looked brand spanking new. Not a single spec of rust, corrosion, black junk, nothing. Spotless.

I'd stick with mobil 1 5w30 if your not a diesel oil fan.
Few guys around here run diesel oil as well with great results. I've heard it also works well as an engine break-in oil?
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Old 04-10-2012, 01:02 AM   #6
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Re: switching from mobil 1 to Royal Purple

Quote:
Originally Posted by Supra View Post
I've heard it also works well as an engine break-in oil?
I've heard the same!
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Old 04-10-2012, 01:03 AM   #7
TKat13
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Re: switching from mobil 1 to Royal Purple

Quote:
Originally Posted by Mach828 View Post
Shoulda seen my car when i swapped the intake cams. Diesel oil FTW. It had 85k miles on it at the time, and it looked brand spanking new. Not a single spec of rust, corrosion, black junk, nothing. Spotless.

I'd stick with mobil 1 5w30 if your not a diesel oil fan.
Does Diesel oil have cleaners? Or, what makes it so much better than Mobil 1?
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Old 04-10-2012, 01:21 AM   #8
ASH302
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Re: switching from mobil 1 to Royal Purple

i'm just goin to stick w/ 5w-20 but switch Royal Purple

ASh
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Old 04-10-2012, 01:33 AM   #9
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Re: switching from mobil 1 to Royal Purple

I was thinking of switching aswell but just been hesitant to do so.
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Old 04-10-2012, 01:39 AM   #10
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Re: switching from mobil 1 to Royal Purple

5w-20 is too thin. I'd at least get 5w-30 Royal Purple if thats what you want.

Lower the second number is, the more wear your causing on your engine at higher operating temps. And only benefit is your probably saving .25mpg and getting an extra 1hp.

With your car being boosted and everything, I wouldn't be running 5w-20. Its your car though!
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