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Why Low oil pressure on 98 Suburban?

Updated: 12/13/2022
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14y ago

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The oil pressure on these trucks goes up and down as you drive. At idle it can get pretty low after the engine has some miles on it. I use a quart of Lucas Oil Stabilizer to replace one quart of oil at oil change. This seems to help all the way around. My 98 has 275,000 miles.

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Q: Why Low oil pressure on 98 Suburban?
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