If you have a spin on style oil filter you should be cutting it open to inspect the filter element for any signs of metal and other particles to check for engine wear. You can also send in your oil sample into a lab such as Blackstone for oil analysis. Our LS3 Swapped BMW E46 was making a knocking ticking sound so we opened up the oil filter and found some metal. Time to rebuild this LS3 engine and maybe do some upgrades while we are at it!

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