I think the Oil cap that specifically states "Mobil 1 5w30 ONLY" speaks for itself. Why would you even consider putting something else in there?

 

Dude, why would you put crappy dino oil in a performance vehicle that says MOBIL 1 right on the oil cap?? Thats just plain dumb, its not like synthetic is that much more expensive anyway. I'm not sure if the dealership can void your warranty for that, but I wouldn't be surprised if they did, they have to cover themselves too. I'm sure they don't want to be paying for engine repairs due to you being cheap and using crappy oil, can't blame them for that.

 

If the dealer is the one who put the regualr oil in it, then its there fault and they cant void your warranty, but it you did it, then your an idiot. And as far as the crate engine thing goes......

http://www.crateenginedepot.com/stor...U5r2TuFWMWvFAM

Its $4500....and thats probably w/o shipping

 

wonder if they are still going to run the cheep oil ?

 

when i took it in for an oil change i had 60 bucks and they asked me what i wanted in it. I wasnt sure because my friend who is a mechanic did my oil last time and i wasnt sure what he put in it and i thought that you couldnt mix synthetic and regular but i now know you can. Then we all discussed what should be put in. We just put regular mobil 5w-30 in because we couldnt find anything anywhere that said full synthetic but i guess i should have figured that anyway. Im going to get it changed soon anyway before 3000 miles just in case.

 

I know about the 2.4L---I am talking about the 2.0 S/C

 

it states in your owners manual that using any other type of oil will void your warranty. I put Mobil 1 extended performance full synthetic in mine. You should never switch from a syn to regular. Buy a whole case of it for 75$ and do your own oil changes. That way you will save $$$ and not void your warranty

 

Why is there even any freakin debate here.... ? ? ? ? ? ?
This totally boggles my mind... Its says MOBIL 1 RIGHT ON THE FREAKIN CAP !!!!
You paid the extra 3-7k for the SS model... Now pay the extra $30 per oil change for the SS oil....

 

you SHOULD NOT switch from one to the other all of your seals will expand and become loose after using non-syn. oil. which will cause leakage and burning of oil when changed back to full syn. now you may argue with me on this all you want but lets just say i work on a little bit more complicated motor than any car will ever have. i work on a lockheed martin/rolls royce T56. so just some advice from a engine mechanic dont do it.

 

Ive switched every engine ive ever had from reg to synthetic and never seen this happen.... Besides rolls royce like to leak oil all by themselves... syn oil or not.

 

i just use pam spray works great:-). lol wow what a funny debate. anyways when do you guys change your oil? i've been a 3000 mile kind of a guy and im getting close to it but the car says i still have 56% oil life left.

 

Im going by the Oil Life %. Why put it on the car and not use it ... its like having a fuel gauge and not using it. You know Just fill it up every 200 miles because you know your car can go that far on one tank.

 

Totally agree, about time someone said this !

 

Look i got this info from some Industrial Chemsists for the Army Corps of Engineers,

in other words, it came with synthetic, it needs to stay with synthetic.

 

Go open your owners manual. Find the part where it says you MUST use a GM4718M certified oil. Take your butt on over to PepeBoys Auto Parts and look at the oil and see how many have GM4718M certified on them. TWO! Mobil1 and Valvoline full synthetic. That's it! API doesn't mean anything to GM. ONLY GM4718M! GM4718M instantly means it must be full synthetic.

NOTE - You can special order Amsoil full synthetic which is also GM4718M.

 

It's true, if the dealer put in regular oil then they can't void your warranty. This is a big reason why I keep receipts of everything i have done on my car, if a question ever comes up about the work that was done, I will have proof of it in writing, that the dealer did it and is therefore at fault. Keeping records is free, easy, and definitely worth it because of the security it gives you as far as maintenance on your car goes and working with a dealer who will always try to deny any wrong doing.

 

My respnse from GM:

In response to your inquiry, we again recommend that you be guided by the information provided in the owner's manual.

The manual clearly states that the oil used must meet a specific standard. It does not caution against the use of regular oil, but clearly states that any oil used must meet the noted standard. If you follow the recommendations outlined in your owner's manual, the manufacturer's warranty will remain intact


Thanks, I opened the owenrs manual and already read and quoted it. It never said the oil MUST be synthetic. It does say it must meet GM standard GM 4718M. Read on and I will talk more of this.

No Pepboys in Canada.

I beat you to it. I did go to a Canadain Tire yesterday and did a liitle research. I already found out there are four brands that meet it.

Mobil1/Castrol Syntec/Valvoline/Amsoil (which they have in stock) clearly meet GM standard GM4718M.

I had originally thought the choices of oils would be far greater and both GM standard would be met an almost all oils. Even the selection for the 2.2L-2.4L oil, GM Standard 6094M is very limited.

So some earlier posts I made were wrong byt they got better as time wore on.

I even made a special post but no one noticed or cared. Go check it out.
https://www.cobaltss.net/forums/general-cobalt-68/oil-findings-12976/

Now if a you could find regular oil that meets GM standard GM4718M it woud not void you warranty soley on the basis of not being synthetic.

But I don't think there is such an oil. So thats a moot point. I thought there might be one but after checking 6-8 brands oil no luck. So I'll eat some crow.

But I checked this out by emailing GM and going out to do some research.

This is all very interesting to me. I have never owned a new car. One that calls for oil to meet a specific standard. NOw I am still trying to figure out what oil to use in my 2.4L--thats the tough part

 

I wish we could actually see what GM4718M says but I can just about guarantee that one of the requirements is that it must be fully synthetic. I always used Mobil 1 in all of my cars anyway so I could care less.

 

Mobil 1 here too. but What about royal purple. do they make a full synthetic GM4718M certified

 

That could be....perhaps a normal oil is not capable of meeting the standard. Oh well.

I would like to check Royal Purple but thats only carried in specailty stores here. Redline and Amsoil are more readily available.

 

a friend of mine runs Royal Purple ill have him check the back of the qt.

 

I emailed royal purple. I will post the reply when I get it.

 

all i know about roayl purple is that my saturn dealer and all the ones local to me, only use and supply ROYAL PURPLE on the ion RL that come in through the shop so either all those saturn dealers are voiding everyones warrenty or its allowed, when i asked the parts manager he said that is all they are allowed to order/ stock for oil changes on the RL, if someone wants to bring in something thing else tehn ok but the parts depot can not order cases of mobile 1, or other jsut not allowed... that is what i know

 

Royal Purple is the industry leader in Synthetic Lubrication. Their product topps the scale on every test. I have made a thread about oil.. Look for it if you need info.

 

https://www.cobaltss.net/forums/general-cobalt-68/explained-synthetic-vs-conventional-11201/