Allpar Webmaster said:"General Motors has started fitting its cars with a computer based monitoring system which determines the need for oil changes based on driving habits, weather, and other conditions. They find that many customers can safely change their oil at 10,000 miles, rather than 3,000 miles. Indeed, some can stretch it out longer. "
If you do oil analysis every oil change you can push higher miles, but as said, it is cheaper to just do it ever 3-5k. On my cars I strictly stick to 3k because they get a lot of commuting miles and me driving it rough on back roads :Banane35:Why tempt fate? Oil is cheap. $30 an oil change every other month is no big deal to me. Cutting that in half wouldn't change my life or anything.
Same goes for trans fluid. The investment is marginal compared to the potential payouts. If I were driving something a little more mundane, like a N/A Outback or whatever, then I wouldn't feel bad about stretching intervals out.
I do ~5k intervals for my wifes 09 Impreza 2.5i with the same oil I use.
My car sees mostly commuting miles as well, ~70 to 100 miles of highway/backroads per day.If you do oil analysis every oil change you can push higher miles, but as said, it is cheaper to just do it ever 3-5k. On my cars I strictly stick to 3k because they get a lot of commuting miles and me driving it rough on back roads :Banane35:
If it's under warranty, follow the recommendations in the owner's manual. It should be around 3,700 miles for normal driving conditions, and perhaps 3,000 miles for extreme conditions (such as extreme cold weather, hard driving, and so forth). Regardless, always follow the Subaru instructions in the manual, or on their web page. I use Mobil 1, or Penzoil synthetic oils, grade 5W-30, and replace it every 3,000 miles. Once the warranty is over with, then I will probably replace it every 4 months or 4,000 miles.I just changed to Full Synthetic and was wondering how many miles on a Oil Change? I have been doing 3000 miles,should I go longer?
Aha, I see the metric gang have arrived :Banane17:In Australia, Subaru recommend an oil change every 12,500kms or 7,500 miles.
With your mods I would invest some $ in oil analysis and go fro there anything else would be just guessing. To be honest if you drive your car hard I would not extend over 3K and I would def used synthetic but if you are changing every 3k almost any synthetic would be fine and I would not waste $ on any high end mail order oil. To be honest I would rather change more often cheaper synthetic than streatch with higher end oil. UOA won't give you the whole picture but it is better than guessing or basing your assumption on someone else experience.I just changed to Full Synthetic and was wondering how many miles on a Oil Change? I have been doing 3000 miles,should I go longer?
A few cents.I don't know if I'd compare street-driven cars to tractors, RPM ranges are different and engines are built differently also. Taxis though -- see what the oil change intervals on those are, it's probably pretty long.
I don't see the need to push oil changes beyond 5K in my situation, what would I be gaining?
I don't look at it as saving money per say, but more so an unnecessary expense. 3K was great when vehicles had basic mineral oil without detergents along with a looooong list of other additives. What is really important though is that is your car and you do what you please with it......... :biggrin:A few cents.