My '99 Corolla has about 145,000 miles and is nearing the time for my next oil change. I am currently running Mobil 1 5w30 Extended Performance. Unfortunately, however, this is the year of the Corolla that burns oil. I burn about 1 quart every 1000 miles. Recently it seems to be burning at an increased rate. I normally top the oil off with the same oil/viscosity as what is in the sump, but instead I decided to top it off with some Mobil 1 0w-40. To date, I have topped it off with 2 quarts of the 0w-40 and the thicker oil doesn't seem to be slowing the consumption.
Here are the oil choices that I am debating about for the next change(the car has a 4 qt capacity):
1. Mix 2qts of Mobil 1 0w30 with 2 qts of Mobil 1 0w-40
2. Use Mobil 1 High Mileage 5w30
3. Valvoline Maxlife 5w30
4. Switch back to conventional and use Pennzoil Conventional 5w30
I really like the Mobil 1 oil, but honestly I am tired of spending additional money topping the oil off every week with a synthetic. So .... which oil from the above alternatives should I use
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Here are the oil choices that I am debating about for the next change(the car has a 4 qt capacity):
1. Mix 2qts of Mobil 1 0w30 with 2 qts of Mobil 1 0w-40
2. Use Mobil 1 High Mileage 5w30
3. Valvoline Maxlife 5w30
4. Switch back to conventional and use Pennzoil Conventional 5w30
I really like the Mobil 1 oil, but honestly I am tired of spending additional money topping the oil off every week with a synthetic. So .... which oil from the above alternatives should I use