I know what your thinking not another oil change question but i could use some help.
First i am considering larger intervals between oil changes for instance 10,000 miles because i drive a lot and find that 3,000 miles is like 1 and a half months for me.
The first question - is this a good idea and will the oil hold up with optimum protection? Im thinking of using Castrol Edge
But im no sure if the OEM oil filter will hold up that long while providing good filtration. Because i have read that the filter can break down over time.
The second question - do you think that the OEM filter will hold up to the larger interval?
I bet with a good synthetic and OEM filters you could push it well beyond 3000 miles. There have been lots of oil analyses on turbo cars on the site which suggest that things have held up well for 5000+ miles on their engines.
You could gradually increase your change intervals and get the oil analyzed a few times until you find the limit, or get to a mileage you feel comfortable with.
Blackstone does oil analysis for $22.50; there may be others.
If you're testing for extended oil life, you'll also want to spring an extra $10 for the TBN test, to find out how much of the useful additives are left:
If you drive easy, you should get around 10k on an oil change. If you are a spirited driver, you should change it more frequently. ALWAYS use synthetic though. You can do 5k on dino oil.
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