My wife's 2009 Trailblazer with I6 Vortec just rolled over 75,000. She has always had service done at dealership so I dont know what it has been running... probably 5W30 dino. I bought 5W30 Maxlife synblend and a Wix filter to send with her today for the 75K mile service. Just wondering if I should do a shorter than normal OCI on the first run or two with the Maxlife? If so what? 1000mi,1500?
A little more background. Bought this program vehicle Nov. 2011 with 39K miles. Was used in neighborhood watch program. It is a basic 4wd Trailblazer LT. No DIC so I can't display OLM. Only had OLM warning come up once when dealer forgot to reset it after oil change. Has been on 6 month OCI regardless of milage. Other than scheduled maintenance has been absolutely trouble free. Replaced battery one time. Last year started a very minor oil drip. Some days a single drop on the garage floor, some days a couple drops, then will go several days or more without a drop. Has never had the oil drop to the fill line on dip stick during the 6 month OCI. The dripping oil is the reason I thought we would try the Maxlife. Dealer says they can't identify the source... we would have to bring it in and let them steam clean the engine so they could try to find it. Not ready to pay $140 an hour to try to find such a minor leak yet.
A little more background. Bought this program vehicle Nov. 2011 with 39K miles. Was used in neighborhood watch program. It is a basic 4wd Trailblazer LT. No DIC so I can't display OLM. Only had OLM warning come up once when dealer forgot to reset it after oil change. Has been on 6 month OCI regardless of milage. Other than scheduled maintenance has been absolutely trouble free. Replaced battery one time. Last year started a very minor oil drip. Some days a single drop on the garage floor, some days a couple drops, then will go several days or more without a drop. Has never had the oil drop to the fill line on dip stick during the 6 month OCI. The dripping oil is the reason I thought we would try the Maxlife. Dealer says they can't identify the source... we would have to bring it in and let them steam clean the engine so they could try to find it. Not ready to pay $140 an hour to try to find such a minor leak yet.