The new GM engines are designed to consume oil. It lubricates the valve guides. Consuming 1qt. about every 1800-2000 miles is acceptable according to GM. Unfortunately, alot of our customers don't check their oil on a regular basis.If we keep them at the 3k mi. interval, this avoids disaster. The savy customers will change thier oil when the reminder comes on. They monitor their oil level on a regular basis. The higher end model vehicles are equipped with a low oil level (idiot) lamp.
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