I just follow the monitor... TOTALLY unnecessary otherwise.

My Acura said 10,000 miles and didn't even specify synthetic. I used synth though. But I followed the indicator at every 10k miles.

I've never in my entire life (now on my 6th car) had an oil related problem. (or any lubricant related problem.. period) I had the valve cover off of my Acura around 73K miles (for performance mods) and the cams and everything looked immaculate.

 

Concur. Just a "for instance" -- I drove 650 miles from East Central Florida to Western NC a couple weeks ago. Straight through with stops only for gas, I only lost 2% oil life. I lost 10% in the following ~100 miles of semi-spirited twisty road driving, with repeated stops and cool-downs in the 30 degree temps.

Summary: Oil life is more a function of duty cycle, than time or distance.

 

well its a little overkill but when it comes out its already black..my engine still misfires at idle dealer can't figure it out and only tells me to come back now adays unless i have a check engine light which is once every few months instead of having me come like every 2 weeks complaining so doesn't exactly help the oil with the little bit of blo-by that every engine has when theres unburnt crap going through

 

LMAO if your low on oil... and you pull the dipstick you can see how low you are lol use some common sense here

and it will never hurt to change the oil and filter at 3000 or 6 months. With the synthetic, if you drain it every 3000 and filter it and put it back in it wont hurt anything ether. I change mine at roughly every 3000 I'm at 351xx and in about 900 miles it will get changed again for 12th time

 

For the people who think " GM doesn't know anything " Why do you own a GM product like a Cobalt?

 

and i would like to add that the cartridge can be removed without any oil loss. you guys are silly!

i havent done an LOF on a new LNF though. so don't hold me to that one.

 

no it wont,
i forgot to change the filter once, and i changed it like a week later, and no oil came out

 

Big giant fail. I've done it before, several times. It isn't a canister filter like on older cars, it's a cartridge that is designed not to leak oil when changed. I used to change mine at the halfway point but I just don't care anymore and I change it when I change the oil as per the DIC.