Question about 2003 GMC Envoy
You should always use the recommended oil. the viscosity of the oil is critical to bearing lubrication. as for quantity, after draining oil and replacing the filter, fill the crankcase with 4 quarts. this will be enough to provide protection. run the engine for a minute or two. shut the engine off and allow 2-3 minutes for the oil to drain back into the crankcase. check the oil level. if the oil is visable on the dipstick to the bottom of the hash marks, add 1 more quart and that should bring you up to the full mark. the area of the hash marks represent 1 quart. if the oil is at the half way point between the hash marks, add 1/2 quart. the dipstick might also have sight holes where you read the level. in any case, the marked area measures 1 quart. if the oil falls within those marks, add the proper amount accordingly.
Posted on May 31, 2010
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Posted on Jan 02, 2017
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