Got a stock 93 Civic Hatch non si. When I start the car for about the first 2 minutes the valves will start tapping. I use Lucas Oil Stabilizer and Royal Purple 5-30. The car has 224k, the timing belt snapped at 187k so i had new valves and retainers installed and headwork done when the timing belt and water pump were replaced. Curious if anybody has any info on what might be wrong. Also the car does seem to burn a little bit of oil.