So I have a 2007 LT coupe with 48K on it, its had just the basic dealer oil all its life but now im driving about 1700 miles a month (75% hwy) and I'm getting tired of getting my oil changed ever seven weeks give or take (always around 3000 miles). would it be better for me to switch to a synthetic? or is the 2.2 meant to just have regular old oil. I didnt want to ask the dealer cause they will just feed me some line of bull just to get $30 extra bucks out of me haha. so what do you think? thanks in advance!

 

wont make a diffrence. you can also go alot longer then every 3K.

id just use regular oil and save some cash

 

When I had my 2.2 I used mobile 1 synthetic just for piece of mind and just follow the DIC as far as oil changes, GM spend alot of money to create a system that tells you when to change your oil.

 

Any name brand conventional oil will meet the GM spec for the 2.2. Name brand meaning Castrol, Valvoline, etc. If you follow the oil life indicator, you'll be OK. That said, I use full synthetic every 3000. Better protection and more peace of mind.

 

that oil life meter has always kinda bugged me, but I geuss its there for a reason haha, Im just looking to pull as many miles out of this car as I can, hoping 150K with out any major problems haha.

 

i use royal purple and change around 7k

 

I switched over to Synthetic on my last oil change a little over 6k miles ago...I went with Royal Purple because I got a great deal on it. I will probably go with Mobil 1 from here on out though as it's what I've used in the past (in my Saturn).

 

mobile 1 synthetic and change at DIC/ Oil Life at 25%

 

Mobil 1 here will change at 50%

 

^^^you are wasting your money

Mobil 1 fully synthetic change it at 5% and you will never have a problem due to dirty oil

^^^you are wasting your money

Mobil 1 fully synthetic change it at 5% and you will never have a problem due to dirty oil

 

i use mobil 1 5000 mile protection working great so far.

 

With the Hwy miles you could even go every 5K with conventional oil......I always used too before I moved to the city.

 

Royal Purple is where its at. They say you can avg about 12000 miles between cahnges. Me personally I still use the 3000 mile rule.

 

Changing synthetic oil every 3,000 miles is a waste of money.

 

Thats one opinion I like to take care of my cars and when it comes to performance and maint. There is cash value on that.

 

i go regular oil at 20% left on the DIC. anything more then that and your wasteing money. especially royal purple at 3K miles lol

 

I use royal purpal and change at about 5-6k its alot smoother too from swithing from regular

 

i get on it in my car............and somehow i feel my best advice would mean **** in this thread.

 

That's not opinion that's fact. Synthetic oil provides full protection well past 3,000 miles. You're not doing anything better for your car by changing it every 3,000 miles, but hey its your money ....

 

alll oils out will offer you plenty of protection. pretty much everything on the market is very reliable.

 

GM sent this car out with conventional and recommends any SAE 5W-30 in the owner's manual. why would anybody waste their money on synthetic?

 

because they watch the engine block on spike and the commercials dont lie. didnt you see the cars blowing up on the castrol oil dyno ad?!?!

 

I had an 89 Ford Probe that I pretty much drove the **** out of. I used synthetic in it from the first day I got it, plus synthetic oil in the transmission. Changed the oil every 4K - 5K and transmission every 30K. The motor finally blew in 2002 with 320K miles on it; original motor and original transmission. Original transmission with 320K was a little sticky between shifts, but never missed a shift. I don't know for a fact that running synthetic is why the car lasted that long, but it is pretty compelling evidence.

By the way, 50% of those miles put on the car were in Chicago traffic everyday.

 

Impressive !

 

Your car calls for conventional to be changed when the oil life monitor says to. Currently you're changing it at 3,000 miles which is way too soon, so going by the monitor would give you the longer oil change intervals you desire and you don't have to spend the extra money on synthetic. Only reason to use synthetic would be for even longer oil change intervals beyond when the monitor says it's time. I don't see why people continue with the ancient practice of 3,000 mile oil change intervals. Has oil and engine technology simple not advanced one bit in the past 20 years?

Here's something else to think about...
"Engine wear actually decreases as oil ages. This has also been substantiated in testing conducted by Ford Motor Co. and ConocoPhillips, and reported in SAE Technical Paper 2003-01-3119. What this means is that compulsive oil changers are actually causing more engine wear than the people who let their engine's oil get some age on it."

Source: http://neptune.spacebears.com/cars/stories/mobil1.html