15,000 mile oil change

[jmarriott]

1998 Chevy astro 4.3 vortec oil changed every 5000 miles except the first oil change at 3000.

I drove every one of those ( except the first 15) Work truck. I used to check the oil every fillup but it never gets lower than 1/3 quart down in 5000 miles. So i don't really check it anymore than every 4 or 5 refils now. Now it I could figure out how to keep tires on it for over 30,000. I drove it with the company i worked for then bought it myself with 187,000 for 1000 dollars with the rear racks and roof rack included.

thinking of selling it to a co-worker for around 2000 and getting a bit more gas mileage but enjoy no having a payment quite a bit also.

5000 mile oil changes with regular oils are fine.