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Royal Purple or Mobil 1

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#3 ·
Mobile 1 is to overpriced for being a almost full syn oil. Royal Purple is good but their are better oils for that price out there. Redline or Amsoil

I actually use NAPA Syn on my car because its actually Valvoline Syn. Half the cost and works just as good.
 
#4 ·
I'm not gonna lie, I've drank the Royal Purple kool-aid. I've used nothing but Royal Purple fluids in all my sports cars. It's always worked fine for me with no problems so I'm sticking with it.
 
Discussion starter · #8 ·
what do you mean by mobil 1 being "a almost full synthetic oil"?

GAMBLE said:
Mobile 1 is to overpriced for being a almost full syn oil. Royal Purple is good but their are better oils for that price out there. Redline or Amsoil

I actually use NAPA Syn on my car because its actually Valvoline Syn. Half the cost and works just as good.
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#9 ·
clodingos97 said:
what do you mean by mobil 1 being "a almost full synthetic oil"?
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There are articles floating around the net you can search for and read. But basically government regulations allow companies to label their oil as synthetic if it meets certain guidlines even if it is not a true 100% synthetic. Mobil1 is one of those companies. There are very few that are true synthetics. Last time I looked (which had been awhile) Royal Purple and Amsoil are about your only options for a 'true' synthetic.
 
#11 ·
Redline Amsoil or Royal Purple are top tier synthetic motor oils.

Concerning Nascar and Mobil1. Just because they say so doesn't make it true.
 
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#12 ·
If that were true, we'd only turn left. Then left. And left. Another left. Coming up on another left. Left. Left. Can't turn right because the road goes left. Guess what?

























Left.
 
#14 ·
Do you guys who run Amsoil just use the standard 5W20 or like their high performance version or what? Just bought some RP today, but not doing the change until Monday, so will go exchange it for the cheaper standard Amsoil. Looking at like $45 vs about $58 for the RP I bought. Thoughts???
 
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#15 ·
MyGG said:
Do you guys who run Amsoil just use the standard 5W20 or like their high performance version or what? Just bought some RP today, but not doing the change until Monday, so will go exchange it for the cheaper standard Amsoil. Looking at like $45 vs about $58 for the RP I bought. Thoughts???
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Regarding Amsoil are you looking for an extended change interval? If not then OE series is just fine for you. The main difference in the different levels of Amsoil is that they're formulated differently for longer change intervals.

I run OE Series 5w-20 in mine since I change at 5,000 mile intervals any way.
 
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#16 ·
Looking for a once a year oil, but I only put about 4k miles a year on my car, so it's more longevity than actual usage. Would the OE series be okay for that?
 
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#17 ·
MyGG said:
Looking for a once a year oil, but I only put about 4k miles a year on my car, so it's more longevity than actual usage. Would the OE series be okay for that?
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You'd be more than fine with OE series.
 
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#18 ·
MyGG said:
Do you guys who run Amsoil just use the standard 5W20 or like their high performance version or what? Just bought some RP today, but not doing the change until Monday, so will go exchange it for the cheaper standard Amsoil. Looking at like $45 vs about $58 for the RP I bought. Thoughts???
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I ran 10w30 in my 4.6L 3V making 530 rwhp for more protection. Not to mention the 4.6L 3V was designed to run 5w30. Regardless that's kind irrelevant here... I'm running the Amsoil 5w20 Signature Series oil in my 5.0L in my F150 right now.
 
#19 ·
Thanks guys! Sounds like I'll just take the RP back and get some of the OE Amsoil. I'm sure some of the other oils would fit what I'm doing, but with just once a year I'll spend a bit more for some peace of mind on my baby and still save some cash over the RP.
 
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#20 ·
NastyFX4 said:
I ran 10w30 in my 4.6L 3V making 530 rwhp for more protection. Not to mention the 4.6L 3V was designed to run 5w30. Regardless that's kind irrelevant here... I'm running the Amsoil 5w20 Signature Series oil in my 5.0L in my F150 right now.
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This, 5W30 is what I will be using when I change oil this or next week. The entire modular line was designed around 5W30. The change to 5W20 was done to eek out fuel economy for CAFE standards and is adequate for most daily driver cars but if you are spirited at all (and how couldn't you be), it has been said time and time again, that 5W30 is a better oil to chose as that is what the engine was designed around to deal with the added stress. For you 5.0 guys, I'm not sure what would be better though. =\
 
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