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11-17-2016, 03:58 PM | #1 | |
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High Mileage
I have a 00 Silverado Z71 with a 4.8. Engine has 298,000 miles on it. It is starting tu use some. Thete are no visible leaks any where on the motor. Local mechanic suggested i switch from Amsoil to a conventional oil and going to a heavier weght. Currently using 5w30. He said the sythetic is probably passing the rings because it is thin.
Anyone have any thoughts on this? |
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11-17-2016, 05:52 PM | #2 | |
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Re: High Mileage
How much is it "starting tu use"?
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11-17-2016, 06:22 PM | #3 | |
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Re: High Mileage
Over the course of a 5000 mile oil change it's using just over a quart.
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11-18-2016, 01:29 PM | #4 | |
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Re: High Mileage
For an engine with almost 300k miles on it, that's really not that bad. You can try 10w-30, it might help, it might not. The only guaranteed way to eliminate oil consumption is to replace the valve seals and piston rings, which is a lot of work if you do it yourself or very expensive if you have it done professionally. If you do decide to do all that, since you'd have the engine torn apart anyway, you might as well just do a full rebuild.
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11-18-2016, 05:32 PM | #5 | |
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Re: High Mileage
You have obviously taken very good care of your truck. That kind of oil usage for that mileage is awesome. With that said I would not recommend changing oil brands. Amsoil is expensive, but it's done its job for close to 300k miles. As mentioned above, maybe a higher weight would help?
Good job!!
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11-19-2016, 07:41 AM | #6 | ||
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Re: High Mileage
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