Mobile 1 vs. Amsoil vs. Royal purple

honey-ham · #1 (**permalink**) 06-14-08, 08:50 PM

Just wondering if anybody has run Amsoil or Royal purple full synthetic oils in their CTS's. I have the 3.6L V6 and I know the Cadillac dealer always recommends using Mobile 1 but I have been doing some research and Amsoil and Royal purple have been shown to be a better alternative. They say that engines run smoother and HP's are greater with either. I was just wanting to know if any of you actually use either of the two and if so, what's your opinion and why? I'm thinking of trying Royal Purple with my next oil change so any feedback would be greatly appreciated. And for all of you that went to the D3 meetup today, sorry I couldn't make it. I had something ver important come up and wasn't able to get there.... hopefully next time.

thewood · #2 (**permalink**) 06-14-08, 09:08 PM

Quote:

Originally Posted by honey-ham

Just wondering if anybody has run Amsoil or Royal purple full synthetic oils in their CTS's. I have the 3.6L V6 and I know the Cadillac dealer always recommends using Mobile 1 but I have been doing some research and Amsoil and Royal purple have been shown to be a better alternative. They say that engines run smoother and HP's are greater with either. I was just wanting to know if any of you actually use either of the two and if so, what's your opinion and why? I'm thinking of trying Royal Purple with my next oil change so any feedback would be greatly appreciated. And for all of you that went to the D3 meetup today, sorry I couldn't make it. I had something ver important come up and wasn't able to get there.... hopefully next time.

Trying to decide which brand oil to use is like trying to decide which condum is best. I think you should double check your research. Everything I see on the web is either sponsored or written by manufacturing companies. To be totally honest with you I don't think there's one independent report that I can find where the manufacture didn't have its hands in or actually own the web hostname or URL. Save your money and run the stuff that GM recommends in your owner’s manual and you shouldn't have any warranty issues.

the cadillac kid · #3 (**permalink**) 06-15-08, 02:06 AM

I ran mobil1 for a while then tried royal purple. Not worth it in my opinion. I have an oil change coming up, & i'm going to go back to Mobile. IF there IS a hp increase, its too minimal to notice, and hence not worth the 40 bucks in the cost of the oil. They also advertised an increase in MPG, yeah uh thats a negative.

mobil1 & Trojan, all the way.

*edit*
check out this thread too: http://www.cadillacforums.com/forums...obbing-me.html (royal purple robbing me?)

drippingwithgold · #4 (**permalink**) 06-15-08, 02:50 AM

If Mobil1 came in KY jelly i would use it!.. I use Mobil 1 in everything that takes oil... tractor, air compressor, lawn mowers ect.

thewood · #5 (**permalink**) 06-15-08, 06:16 PM

Quote:

Originally Posted by the cadillac kid

and hence not worth the 40 bucks in the cost of the oil.
mobil1 & Trojan, all the way.

*edit*
check out this thread too: http://www.cadillacforums.com/forums...obbing-me.html (royal purple robbing me?)

Have you see the price of a quart of oil recently? It's up about a buck a quart.

AlBundy · #6 (**permalink**) 06-15-08, 10:20 PM

Wow, an oil thread that hasn't been locked yet. Weird.

honey-ham · #7 (**permalink**) 06-16-08, 01:03 AM

Thanks for all your input guys,.... this was the whole reason I wanted feedback before I proceeded with some other brand. Thank God for forums! I think I'll just stick with mobile1. After all, what could work better than what the engineers have recommended with their engines. Thanks again!

**Rolex** · #8 (**permalink**) 06-16-08, 01:06 AM

Is it time for another "which oil is best" thread already?

If you change oil every 3000 miles use dino oil. If you want to go 5000-10000 miles between changes you should run full synthetic. The money spent on full synthetic is offset by the period of time that elapses between changes. If you run full synthetic and change every 3000 miles you're senselessly throwing money away.

JMHO

ghettomike · #9 (**permalink**) 06-16-08, 05:52 AM

ive neen watching for a sale an oil....they come up on every once and a while...i use mob1, useto be syn tech and trohan mangums...gold wrapper.LOL.they are classy and just leave one on your dashmoard next time yer hittin on a girl...they will either be a tight ass and call u a pick or get in and say "mangnun eh...so what you doing later?" rither way you cony loose...you can also use mob1 to lube that if you want LOL

**Rolex** · #10 (**permalink**) 06-16-08, 10:40 AM

Quote:

Originally Posted by ghettomike

ive neen watching for a sale an oil....they come up on every once and a while...i use mob1, useto be syn tech and trohan mangums...gold wrapper.LOL.they are classy and just leave one on your dashmoard next time yer hittin on a girl...they will either be a tight ass and call u a pick or get in and say "mangnun eh...so what you doing later?" rither way you cony loose...you can also use mob1 to lube that if you want LOL

What the