Royal Purple or Amsoil

[Cali03Boss]

oil is oil unless you have a high milage engine.

 

[01TrueBlueCobra]

My Cobra is due for a oil change soon. I'm having a hard time in deciding which motor oil is best Royal Purple or Amsoil. I would like to know everyones opinion on this and the Pros & Cons on both of these oils

 

[Dark Knight GT]

I use Amsoil in my car and I haven't had a problem with it yet. My brother uses it as well and no problems there either. I hear good things about Royal Purple but I've never used it personally. How much does Royal Purple cost and what kind of oil change intervals do you get with it ? I know with Amsoil 2000 series oil you can change the oil once a year or every 35k miles which ever comes first and just do filter changes every 12k miles or 6 months, which ever comes first

 

[bdcardinal]

i dont use either because they arent readily available in my area. i just dont like having to mail order fluids for my car. ive heard good things about both, and ive heard bad things about royal purple in that their additive package isnt that great or nonexistant in some cases.

 

[twogts4us]

I use Amsoil in my car and I haven't had a problem with it yet. My brother uses it as well and no problems there either. I hear good things about Royal Purple but I've never used it personally. How much does Royal Purple cost and what kind of oil change intervals do you get with it ? I know with Amsoil 2000 series oil you can change the oil once a year or every 35k miles which ever comes first and just do filter changes every 12k miles or 6 months, which ever comes first

That would be great to go a year between oil changes, and maybe this is a dumb question but how do you change the filter without changing the oil?

 

[bdcardinal]

you take the filter out and replace it. the filter is higher than the oil pan so only like a half quart should pour out plus the half quart or so of oil left in the filter. you install the new filter and add a quart of oil and youre good to go.

 

[Dark Knight GT]

That would be great to go a year between oil changes, and maybe this is a dumb question but how do you change the filter without changing the oil?

you take the filter out and replace it. the filter is higher than the oil pan so only like a half quart should pour out plus the half quart or so of oil left in the filter. you install the new filter and add a quart of oil and youre good to go.

I think that answers it.

 

[AdRock]

I'm running AMSOIL 5w-30 in mine now. I've had good luck with theis oil and the engine seems to run a tad smoother with it. I haven't used Royal Purple myself, but I haven't heard any bad things about it. Redline also makes a pretty good synth.

Also, if you're an AMSOIL premium customer you can get the oil for about the same price as MOBIL1. The last case of AMSOIL I bought cost right at $60. Most of the time when I see it at a shop it's going for $8 - $10 a qt. So, if you do decide to go AMSOIL don't just go to a speed shop and buy it. Find a local private dealer and get to know them.

 

[FallenPhoenix]

I'm just getting plain Mobil 1 synthetic in mine, I don't think there's really enough gain to make it worth it.

 

[8yourZ06]

Don't be fooled about Royal Purple. That stuff is a joke. Amsoil and Mobile 1 are both excellent.

 

[Marks5.0!]

i use amsoil in mine and my wifes yukon, and royal purple in my parents vehicles, ive had no issues with either one

 

[rjstaaf]

Don't be fooled about Royal Purple. That stuff is a joke. Amsoil and Mobile 1 are both excellent.

Why do you say that? I can't say I have ever heard anyone say anything negative about Royal Purple. Don't use it myself but, would be nice to hear your reasoning.

 

[bdcardinal]

ive heard both good and bad about royal purple. supposedly their additive package isnt that great, however ive never used it because its not available here.

 

[FallenPhoenix]

The things I've heard about Royal Purple, is that it ends up giving you more power but less protection. Great for race engines that don't see many miles and the oil is changed often, but not so good for a street car.

 

[8yourZ06]

Royal Purple is loaded up with sulfer additives. This will initially show a gain in power but after 750 miles or so..that oil is done. Eventually, if you ran it long enough it would just gum up the motor and leave sludge in the oil pan. So yes, the additives package is nuttin to brag about.

 

[BlkNShiny03]

Amsoil warranties your motor if oil failure was the cause of a problem.

 

[stang976]

i am scared to switch to synthetic oil after some of the stuff i heard on the threads with people who switched. also synthetic seems a lot thinner than regular oil which scareds me a little.