Good Day to all! Can anyone advise on the best oil for the GCSRT8?
Almost time for an oil change, but not sure which brand to go with.
Currently I have just over 14,000 miles on it.

Thanks in advance.

Mobil1, Royal Purple, Amsoil, pretty much any quality synthetic oil will be fine. Also, don't cheap out on a filter, get a K&N, Mobil1, or similar.

Mobil 1 , 0w40 is my go-to

Mobil 1 , 0w40 is my go-to

That's what came in my 2010 Jeep. I'll stick with it.:)

Thanks Ekaz and Dirty. I really appreciate the info. I want to make sure I do all I can to take care of this baby since we plan on keeping it for a while.

Thanks Vader!

Mobil 1 it is!

M1 0w-40 is a high quality oil. However, most oil analyses said that it's consider a "thin" 40.

maybe people are switching because 0 is used to like -40degrees... if you are in florida then i doubt you need that!...

besides its a difference in like $6 a quart or go to walmart and see what they have for $23 for 5 quarts...

http://www.aa1car.com/library/oil_viscosity.htm

M1 0w-40 is a high quality oil. However, most oil analyses said that it's consider a "thin" 40.

Nowhere in my analysis' has this oil ever been referred to as thin.

http://i172.photobucket.com/albums/w26/cmn1srt8/SRTOil-2.jpg
http://i172.photobucket.com/albums/w26/cmn1srt8/9-3-09OilAnalysis.jpg

Mobil 1 0w40 or 5w40 will do the trick for you.

but several guys in hot climates have switched to mobil 1 15w50 for the summer time and then go back to the 0 or 5w40 for the winter.

I will be switching over to the 15w50 in the next oil change. and I always use either WIX or Mobil 1 filters.

Nowhere in my analysis' has this oil ever been referred to as thin.



no but the "0" means it is a thin oil... i think that is more of what he meant

i went to a quicklube and they said that a big warning popped up on their screen when they punched in my vehicles details saying "mobil 1 0-40 or it'll void warranty". I dont know if this is true or not.

you are also in canada where it is colder then an ice cube... :)

Mobile1 in all cars I've had , simply pick the grade that is required by the Manual , luckely bothe my cars takes Mobile1 0-W40

Just had my rig in for a complete fluid change at 14,000 and brought in 7 quarts of mb 1 15w 50 and the dealer would not put it in saying that it would void the warranty. It is really hot in Orlando and I know others have used that weight in the summer. Have any of you guys heard of this before?

Mobil 1 for me.
15w-50 during the hot summer months. 0w-40 the rest of the time.

Nowhere in my analysis' has this oil ever been referred to as thin.

http://i172.photobucket.com/albums/w26/cmn1srt8/SRTOil-2.jpg
http://i172.photobucket.com/albums/w26/cmn1srt8/9-3-09OilAnalysis.jpg

It's a thinner 40wt oil that's still within spec of "40w". Most on LGT forums ran M1 5w-30 and consumed about 1qt every 3000 miles. This did not happen on other dino oils or even Pennzoil PP 5w-30. Their solution was to use M1 0w-40 (as is mine), and no one had oil consumption afterwards. M1 0w-40 is not expensive either. Most PX's on post sell it for $6.50/qt with no sales tax which is LOT better compared than what Pep Boys and Autozone want for a qt.

no but the "0" means it is a thin oil... i think that is more of what he meant

The "0" denotes the viscosity at startup. Generally, a lot of engine wear occurs at start up where not all parts of the engine are lubricated that well. Most people prefer a lower number.

That doesn't mean it's considered a "thin" oil for it's rated weight.

Just had my rig in for a complete fluid change at 14,000 and brought in 7 quarts of mb 1 15w 50 and the dealer would not put it in saying that it would void the warranty. It is really hot in Orlando and I know others have used that weight in the summer. Have any of you guys heard of this before?

There is a TSB that states to use it. So no it will not void your warranty.

Nowhere in my analysis' has this oil ever been referred to as thin.


Chad are you going blind:eek:

http://i7.photobucket.com/albums/y283/texastourist/mercedes/9-3-09OilAnalysis-1.jpg

Im using Amsoil European Blend 5W-40 and filter.

Chad are you going blind:eek:



I don't know how I missed that. My oil is thin.

Chad it's okay, I mean you do own a Cobra maybe it's the Ford side in you that missed it.

Chad it's okay, I mean you do own a Cobra maybe it's the Ford side in you that missed it.

Well I have had to drive it the past month since my Jeep couldn't handle a little road course.

Poor Jeep, mine goes in tomorrow for a rear end rebuild...woohoo!!!

Well I have had to drive it the past month since my Jeep couldn't handle a little road course.

am i missing something... i thought the jeep had better handling... or do you have mods done to the cobra?

dont forget i am a ford guy... just asking the question

am i missing something... i thought the jeep had better handling... or do you have mods done to the cobra?

dont forget i am a ford guy... just asking the question

No, Wade was giving me poop for having a Ford and I was saying that my Ford was there for me when the Jeep broke down cause it couldn't handle a road course. I destroyed my trans and it was out of commission for a month.

Poor Jeep, mine goes in tomorrow for a rear end rebuild...woohoo!!!

Rebuilding it stock, or adding parts that don't break as easily? I'm wondering if there would be any interest from anyone for my rebuilt unit Western Diff fixed up and old driveshaft. Have it in my garage in a coffin sized box. I have no idea what to ask?

I use Amsoil European Blend 5W-40 and the longer K&N filter HP-3001. It's mounted in a different location, not on the engine block.

No, Wade was giving me poop for having a Ford and I was saying that my Ford was there for me when the Jeep broke down cause it couldn't handle a road course. I destroyed my trans and it was out of commission for a month.

ahhh i see, i figured there was an something behind it... yeah my fords have always been more reliable than my Chrysler products

ahhh i see, i figured there was an something behind it... yeah my fords have always been more reliable than my Chrysler products

Bite yer tongue! :p

Bite yer tongue! :p

none have left me along the road... however many-a-times in the chryslers ive been praying to make it home...

actually i recall helping push a turbo Chrysler into a parking lot after it pulled my ford...



BACK ON TASK... 0-40 is pretty extreme and expensive... not really needed

im using amsoil european blend 5w-40 and filter.
^^^^+1.......

When I purchased my Rig, I bought the oil change package that granted me 4oil changes. Then they tell me (the stealership) that they threw in an additional 4 free oil changes. After roughly 12,000 miles, they switched over to using Penzoil. For the past 6,000 miles they (the stealership) have been putting Penzoil into my Rig and I have not heard the annoying Hemi Knock coming from my engine at start ups and my oil is not as black when I check it before I take it in for an oil change. I don't have any proof of this but my Rig does seem to performed better when I was using Mobil 1........Go figure!!!!

penzoil is the last that i would use... they prob just did it to save money

penzoil is the last that i would use... they prob just did it to save money

They lost their contract with Mobill 1 when they filed for bankruptcy.

They lost their contract with Mobill 1 when they filed for bankruptcy.

yes they did... im just saying i would tell them to shove it before i let them put that crap in... not worth it to me for "free changes"... if that was the factory fill and i got free changes i would be making sure it was going in there...

(after all, the dealership doesnt fill warranty claims and Chrysler only has to worry to 36,000 miles right?)

SRT Engineers state any quality, brand-name synthetic oil 0W, 5W, 10W-40, or 15W-50 is perfectly fine. I think they should know.

SRT Engineers state any quality, brand-name synthetic oil 0W, 5W, 10W-40, or 15W-50 is perfectly fine. I think they should know.

maybe they knew something when they were using Mobil...