Hi.I have a 2005 GMC Canyon, 3.5 liter L5 Engine. 94,300 miles.I had the oil changed in Dec 2011 at 92,528.Checked the oil last week and it was about a half a quart low. Drove about 35 miles and checked it again. It was more than a quart low.IT HAS NEVER USED OIL BETWEEN OIL CHANGES BEFORE. Change oil every 3,000.No leaks showing. No stains on the pavement.Stuck valve????Thank you.
Country: United StatesMake: GMModel: CanyonYear: 2005Engine: 3.5 liter L5 engine
Hello, and thank you for letting us help you with your automotive question. I need a little more information from you. Is there any smoke from the exhaust? What type and weight oil was used?
No smoke, ever.
Thank you for the information. I would start by checking the oil over the next few days only in the morning to see if it changes. If the oil level remains the same and before it kept showing low then you might have an oil sludge problems slowing down the return of oil to the crank case. If that does not change anything then you may want to change the oil again. I have gotten oil from Valvoline in the past and had a problem with it burning due to it being a different batch and burning off. If that does not help and there is no smoking then you have a problem with the valve guide seals. It is common on a lot of GM vehicles. The oil will get by the seals and get burnt off without showing signs of smoke from the exhaust.
Would the problem with the valve guide seals happen as quickly as I have experienced?
It is my plan to add oil and continue checking the oil level before taking it to a mechanic.
What do you think about that?
Yes, it can happen that way. I have had engines come in that started burning so fast that they were burning 1 quart every 20-30 miles. That is rare but it happens. I would try what I mentioned before you condemn this engine.
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