It is recommended to use 10 W 40 motor oil in a 2003 Chevrolet Tahoe engine. It is also recommended using 10W-30 motor oil in a very cold climate.
what type of gear oil to use in 2003 chevy tahoe 4wd
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5w 30
15mm wrench
SAE 10w30
5w30 only
Chevy Tahoe
till it comes out of the fill hole about a quart
SAE 5w20 any major brand.
You may use your regular 10W 30.
5w30 weight ONLY. Kendell, Gastrol GTX, are real good brands of oil to use.
It is best to change the oil after every 6000 miles. The most important thing is to follow the recommendations for your car.