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raise it securely on jack stands unscrew the filter then their is usually two bolts holding an adapter their take it off carefully so you dont damage the mating surface on the block clean thoroughly get inspect for cracks or pinholes replace gasket and oil filter. if in doubt about the shape of your adapter buy a new one from gm 34.99 or less if you go to summit racing .com make sure you put oil in your filter about half a quart then start let it warm up check for leaks shut it off wait about ten minutes for the oil to drain back into the pan and check your oil level you might need to add another half quart

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Q: Oil is leaking around oil filter adapter on a 1990 Chevy suburban?
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