What's your engine oil?

[byron84]

I'm due for an oil change, previously I was just going to the dealer and it was something like $40 or $45 but it was whatever oil they put in, I didn't even think to ask. I know some people may be proponents of Synthetic and others stick to regular oil (well it's definitely cheaper).

I am thinking about going synthetic myself, I never have but know some people who have and swear by it.

My question then is, how to choose which oil to get?

[Daox]

IMO there really isn't that much difference. Theres no real king of the oil world. If you want to run synthetic, it will free up a tiny amount of horsepower and it will allow you to run longer between changes (10k+ miles). If you stick to conventional you loose that little bit of HP and have to change the oil sooner.

Personally, I mostly run synthetic and change the oil and filter around 10k miles.

[byron84]

How many intervals have you passed, any downside or negative effect of waiting 10k?

Any difference in how good of mileage you get using synthetic?

[Daox]

I've gone 15k on synthetic before on a different car. But, I also sent my oil in to be analyzed to see if theres any abnormal wear and there wasn't.

The mileage improvement is going to be very small. You probably won't even be able to tell there is a difference.

[byron84]

I forgot to mention that I had a nightmare last night. I was going to someplace to get my oil changed, and they wanted to charge me $300. After bitching about that, they said ok ok $100. Then I said, ok I'm going to check my prices and I left.

It was a weird dream.

Any recommendations on oil filters?

[Daox]

I'd use a better filter for longer oil change intervals. However, I've heard of a guy running the cheapest Fram filter for 25k miles and getting an analysis back and it was fine. He said he might go 30k on the next filter. I'm not sure how many times (if any) he changed the oil during that time. Like I said, I just stick to doing everything at 10k.

[dragonwarrior2016]

I use 5W 30 in the winter and 10W 40 in summer I use High Mileage oil for my car because it has 92215 miles on it. I want to take good care of it.

[hammsaveo]

mobil 1 full synthetic 0w30 advanced fuel economy..... Going 10,000mi This car likes the synthetic in the winter here in MN!

[Wolfman AK907]

I use Royal Purple 5W30. I have to order it up here though, so when I forget and don't have any I use Mobil 1 Synthetic. I swear by both. I grew up always using Mobil 1 Synthetic. Take a look at how many professional NASCAR teams use Mobil 1 over anything else and that will tell you all you need to know. Just my .02.

[ontarian_frog]

I use Royal Purple 5W30. I have to order it up here though, so when I forget and don't have any I use Mobil 1 Synthetic. I swear by both. I grew up always using Mobil 1 Synthetic. Take a look at how many professional NASCAR teams use Mobil 1 over anything else and that will tell you all you need to know. Just my .02.

That tells me Mobil sponsors a lot of Nascar teams.