I was wondering how often everyone here actually changes their oil. I'm going to take a chance and have everyone ignore whether they use conventional or synthetic.

Autoblog had an article about how a majority of ASE certified Master Automobile technicians voted to change oil every 3,000 miles (study sponsored by valvoline of all people). I think that's way too short and only happens because of old thinking.
http://www.autoblog.com/2006/07/13/master-...erval/#comments

Thoughts?

Why waste oil and money when you don't have to? Or is it really good insurance to change often?

I'm personally doing 3,750 with conventional oil until I pass 10k, then switch to synthetic oil and go for the 7.5k interval since I drive so much freeway now.

Thanks!

 

All I got to say is asking mechanics when to change the oil, is like asking a bank clerk for a stock tip. Sure they're kind of in the same place but, neither's qualified to even offer an opinion. Honda says 3750 for harsh usage so, I do it at 3750.

Now, it you asked 500 petroleum enginneers who specialize in lubrication, I might listen to them.

 

5k with synthetic. Easy to remember and I drive about 8k per year.

 

^5k here also with synthetic (mobile 1)

 

4-5k, but I love going to redline with my sc'r and I'm a bit paranoid. I also check my oil weekly, and I pay attention to the color.

 

I change oil around 2000mi but I'm FI.

 

Every 5K with synthetic. Sorry I couldn't vote.

 

I'd probably do 4k normally, but since I just bought the car and dont know when it was changed last, probably 2.5k. But I do it myself so cost is minimal

 

That seems like it would be too often.. even if you are charged. If your running good synthetic, I doubt your charger causes the oil to breakdown that fast. Might want to run it to 3000 miles. I run my Twin Turbo 3000GT with Mobil 1 synthetic and have always gone 3000 miles... and I Know that thing builds up more heat then your S.

 

^ It is a little short. I forgot to mention that I drive so infrequently that by the time I hit 2000 miles it's close to 4-5 months since the last change.