whats better?

the oil cap mobil 1 stuff or royal purple?

 

i heard royal purple is really good. but personalty i haven't tried it but mobil 1 works perfect for me.

 

use whatever fits your budget. both are good. there are people that are loyal to their brand that will argue one way or another. mobil one is fine though, and it's alot cheaper.

 

another one of these threads hey

 

I like Penzoil Platinum

 

I say go with the stuff that wont void the warranty...lol some dealers look at that, but i guess you could always lie and tell them it was whatever.

 

1. make sure whatever you get is a full synthetic, turbos don't like it any other way

2. I would go w/ a top rated API oil and not less and def. not an oil that isn't API rated

What the manual suggests:

Look for three things:

1. GM4718M : Your vehicle's engine requires a special oil meeting GM Standard GM4718M, such as Mobil 1Ž or equivalent. Oils meeting this standard may be identified as synthetic. However, not all synthetic oils will meet this GM standard. Use only an oil that meets GM Standard GM4718M.

Notice: Using oils that do not have the GM4718M Standard designation, can cause engine damage not covered by the vehicle warranty.

2. SAE 5W-30: SAE 5W-30 is best for the vehicle. These numbers on an oil container show its viscosity, or thickness. Do not use other viscosity oils such as SAE 20W-50.

3. American Petroleum Institute (API) starburst symbol

There is no reason to use anything else

 

its what I use too

 

i run royal purple and would rather run it that mobil 1.

 

There were thousands of dollars done in research out of LS1 owners' pockets on this one. What they came up with was Mobil 1 is barely synthetic. It breaks down really easily compared to most. Royal Purple is good. AMSOIL is great. And LS1 owners even had a cult following of something called German Castrol, which is just Castrol 0w30 that was made in Germany...and for the longest time it was green instead of a gold/brown. But I don't know what 0w30 would do to an ecotec. Royal Purple is fine.

Oh, the German Castrol was thicker than led to believe, it should've been classified as a 5w more than the Mobil 1 5w30 should've been. Just remembered that bit.

 

amsoil...

 

Thousands of dollars eh...sounds like nothing compared to what GM spends on lubrication analysis.

Stick with GM spec oil.

 

is it ok to run 10w 30 in it? i put 10w 30 synthetic in my taurus and it called for 5w 30 ran fine really, i think cause its florida and its hot as hell

 

LS1 fanatics' own money, not some corporation. There is a reason why they know how quickly Mobil 1 breaks down and what oils have the best shear protection. And they love their cars so much they want to make sure they can do everything for them. :P

Since it is a 0w oil and it doesn't have the cert, don't use it if you are worried about the warranty. But there are many other vehicles(just from googling german castrol) that swear by it, saying it actually offers better protection than most 5w oils(and usually showing off their lab results for proof). Reason I say most is AMSOil..but that one is very unique. You need to submit oil samples to a lab just so they can say how much life is left in it.

As said before, Royal Purple until you are out of warranty. I mean, dealerships even offer RP as an option if you want a $60 oil change. Then you go to some Autozones, checking the backs of Castrol syntec 0w30 bottles for the "Made in Germany". I imagine there is a reason why it doesn't have the cert. But its noteworthy that Mobil 1's own 0w30 is GM certified. That sounds fishy. Perhaps it can meet the certification, but Castrol never submitted it for testing. Same can be said for AMSOil's 0w30.

Best source for this I can think of is http://www.bobistheoilguy.com

 

that sounds like the biggest load of bullshit ive heard in weeks.

 

10w30 is good down to -20F, 5w30 is good down to -30F

since you are in Florida you shouldn't be getting that cold at any point, you will be fine

 

If science is bullshit, be my guest. Suppose most of us won't be keeping these cars for 10 years anyway.

 

Mobil 1 is the factory-filled and recommend oil for the McLaren SLR. It's good enough for me.

 

ive seen no science here. just opinions.
feel free to post these high quality, unbiased test results,
and after your done rebutting the stacks of evidence against you, ill listen.

 

Just because someone is a fanatic/loves their car doesn't mean they are a qualified engineer/chemist. Also, just because a corporation does something doesn't mean its wrong. (In fact its usually the opposite) GM does not want you to buy an oil that has inferior lubrication that will end up with failed engines. Why? Warranty. They want the engine to not cost them a penny more than what it costs to make.

Besides, most people change their oil way too often as is (hint: follow what the computer says, its accurate) and as long as the oil passes GM validation it will be fine to use.

 

QFT.



Seriously, I love these kids that come on here and post up a bunch of BS and throw down the science card...then they yell at ME for not providing proof and blah blah blah...

I won't be running anything other than Mobil 1 in my car.

 

There is way too much for me to post. I have given a website for your curiousity.

http://www.bobistheoilguy.com

or the first two results from google:

http://www.neowin.net/forum/lofivers...p/t512042.html
http://www.bobistheoilguy.com/forums...&Number=718643

I can't find any charts and stuff after looking for a few minutes b/c the links seem to be bad. But from STi's, SRT-4s ,and 8s to LT1's, LS1's, LS3's, and finally found an Ecotec-a Vue, running on it. 8000 mile intervals, too.

 

RP ftw!

 

none of those links have anything to do with your little experiment
you just went to bobistheoilguy, and tried to palm off the good information there as your own.

wheres the "science"
back up your claims with the evidence you said you had.

 

Oil is something that wears down the parts over time. You'll definitely see it after warranty, so they aren't concerned at all about that while the fanatics/enthusiasts are. I don't know why or how but when I had my Camaro SS some on LS1tech were calling it a mod. This is why there is a mile limit on warranties, b/c that engine will feel stress after 150k miles, which some folks do after only 3 years. I'm not one of them, but its just I remember in 2002 when the whole German Castrol investigation began.

Again, if you want to call the GC cult a bunch of idiots, be my guest. But an awful lot of hours have been spent to see what the craze was about. But if you are just so unsure of a 0w30(bearing in mind the previous statement where Mobil 1's 0w30 is certified), then just get your Royal Purple and be content.

Never claimed it as my own. I always said there was a cult following.

From Neo1 at Corvetteforums.com

German Castrol without a doubt. The best 0w-30 on the market other than maybe Liquidcosworth and Mobil 1 Racing oil. Not a fair comparison though being those are true racing oils.

German Castrol is 12.5 cSt @ 100C and HT/HS is 3.6

Amsoil 0w-30 is 10.6 @ 100C and HT/HS is now 3.3

It was a thread about AMS series 2000 vs. GC.