I have a 2005 Pontiac Vibe (Toyota Matrix twin) It has the standard engine, same as the Toyota Corolla, 1800cc 16 valve with variable valve timing. The car has only 26K miles on it.
I am not driving much since I lost my job. I changed the oil almost 6 months ago, but it only has 2000 miles on it.
I live in Minnesota. My driving is a mix of city and freeway. I have a Scan Gauge in the car, and I always try to get it up to full operating temperature, in the winter. Sometimes I do make short trips, if I have to.
When I drive on the freeway, at least 2 times a week, I drive 1 to 3 miles to get to the freeway, and then I drive 10 to 15 miles non stop on the freeway, then another 1 to 2 miles before I stop. So the engine gets good and warmed up.
I also use an oil pan heater any time the outside temp is below about 30F, and an engine heater (frost plug) if the temp is below about 10F. Typically the scan gauge tells me the engine temp is around 50 to 60F, right after I start the car, no matter how cold it is outside.
I use Castrol dino 5W30 oil.
The oil looks only a little dirty: a bit of a very light brown color on the dipstick or white paper towel.
I normally change oil every 3K miles.
My question is: can I go until I get to 3K miles, or, since it's about 6 months, should I bite the bullet, and change the oil? Money is pretty tight right now, but I obviously want the car to last a long time.
Thanks guys.