Originally Posted By: Bill in Utah
Yep, I'd change it every 6 months or 5k miles.
And I'd prob NOT use Syn unless you get it on a deal. If your spending more for Syn you need run it longer to show any benefit. With your usage, I'd run conventional oil and change it often (ie the 6mo) to get the by products out.
If you lived in a cooler area, I'd prob suggest even shorter OCIs!
But, others will disagree. Using Syn for 1-2k miles is a TOTAL waste unless the engine REQUIRES it. And even with syn, I'd change it more often due to the short trips.
Driving it more often and longer trips we could get into longer OCIs as the water and such are burned off more often. Then maybe a Syn could get into the mix.
I ran an OCI for 1 year in a friends truck. Total miles was 3k. I was REALLY scared when we changed the oil that he had a head gasket leak as the oil came out looking like more coolant than oil.
It was just the water from short trips. We went to 4 month OCIs after the 1 year OCI and the oil came out looking normal.
My wife drives very short trips in our Outback, but once a week at the minimum she does go 15-20 miles one way to work and then home same distance and our UOAs look good. In her car we keep the OCIs to no more than 7,500 miles or 6months. (for warrenty reason and oil is cheap)
Just my opinion but I've taken a lot of motors well past 200k miles with never any problems.
Pablo calls me Mr Smooth! (I wish I was married to Mrs Smooth so she would take care of my cars better)
Take care, bill
Thx Bill.......except for starting the truck once per week or 2 and running / driving it around the block for 30-45 mins to keep it lubed, the truck is only used for long highway trips (about 800-1000 miles round trip) approx once every 3-4 months. I'm just wondering if I should take advantage of the Synpower BOGO at AAP this month, which comes out to about $2.74 per quart, or look for something even cheaper.