I just got my car back from the dealer today from it being fixed from flood damage. I have to take it to the body shop monday beacuase the tow truck driver cracked my fender and body kit but anyways. I went straight to work and it sounded like they didnt tighten all of my bolts on my exhaust or headers. I called them told them i about it taking it in tommorow. I got off work walking to my car and you can see my exhaust hanging alot lower than it did before. I started the car i smelled gas. Now with the wrong oil help i was looking over the invoice they gave me and it said everything they did. So i was looking at the oil change they did the service guy said they had to change the oil twice. But on the invoice it said they used 10w30 i dont know if it was synthetic or not but their supposed to use 5w30 right. would this really mess up my engine or what will it do. Sorry about my rant. Please help

 

it seems to me that your dealer is a failure

 

If they used conventional make them change it.

If they did use syn. I wouldn't worry to much about using 10w instead of 5w because you live in a warm climate.

 

But will it damage anything if i drive around with conventional oil instead of syn

 

not really, most conventional oils have so many additives they're more like syntetic blends, the thing about them is that it breaks down easier/faster, so it doesn't perform as good as full syntetic, especially on higher performance engines, you should be fine as long as you don't push the engine hard, and change it as soon as possible, (my brother put full syntetic in his rx-8 and the dealer told him that if he drove it too much it would gunk up his engine and possibly clog his cat, because full syn won't break down and burn like the conv kind, the crazy thing is that most rotary shops sell full syntetics like royal purple, etc.)

I was doing some looking around and came across this ( http://www.popularmechanics.com/auto...o/4232672.html )

 

It won't kill your engine to run conventional for a short time but you should certainly have them verify that they did put synth in it. If they didn't then the dealership should put synth in it for free since they are supposed to put Synth in it for the LSJ/LNF engines.

The #W isn't going to harm your car. It is mainly the cold flow properties. As long as the number matches your climate, you're fine. 10W is fine for Texas as you rarely see sub zero temps. The second number is the one you must watch out for. The car will not take kindly to an oil that isn't a #W-30.

 

i think you guys would better mechanics than those artards that work at the dealership

 

so, the cobalt supercharged uses Synthetic or regular oil?

 

Cobalt LS/LT/Sport/2.4LSS use conventional.

Cobalt SSsc and SStc use Synthetic.

 

Sounds like you need a new dealer.....

 

or do his own changes, always more fun and cheaper

 

I didnt take it for an oil change the dealer had it cause my car got flooded and sucked up water. I usually i do my own changes. I also had the cel turn on good thing it was at the dealer when it did. Their gonna fix that and the damage the tow truck driver cause on monday. Im getting a rental for like two day hope its not gay!

 

last time I got a rental it was a '09 lt or what ever is base looking 2.2 with power windows/locks, and xm system

 

I Just want my car back to normal!! Is that to much to ask for!!! lol