4.2L Chevy Trailblazer I6.
148,000 miles.
Manual says 5w30.
I ran PP 5w30 in this truck until I noticed it started using 1-2 quarts between 10k oci's. I then went to PP high mileage 5w30. I've already used 3 quarts at 7000 into oci. I drive aggressively with frequent high rpm's and tow around 5500 lbs 15 miles 2 or 3 times per month. No leaks at all.
I wonder with the towing of about 5500 lbs and consumption if I should use a thicker oil?
May not be relevant but my timing chain tensioner just failed in some manner after a couple WOT bursts. I'm having it replaced and the truck won't see quite as much high rpm driving!
Thanks
Mike
148,000 miles.
Manual says 5w30.
I ran PP 5w30 in this truck until I noticed it started using 1-2 quarts between 10k oci's. I then went to PP high mileage 5w30. I've already used 3 quarts at 7000 into oci. I drive aggressively with frequent high rpm's and tow around 5500 lbs 15 miles 2 or 3 times per month. No leaks at all.
I wonder with the towing of about 5500 lbs and consumption if I should use a thicker oil?
May not be relevant but my timing chain tensioner just failed in some manner after a couple WOT bursts. I'm having it replaced and the truck won't see quite as much high rpm driving!
Thanks
Mike