have a 90 Honda Civic DX Hatchback w/ a d15 engine. i waited too long to do a tune up and now that i did the tune up, the engine vibrates very bad and turns off on its own. the car has gas and new spark plugs, sp wires, distributor cap and rotor. i drive it around and as i drive it it loses compression. i check the spark plugs and all the plugs r dirty filled wit fuel. i changed the spark plugs and the same thing happened. what can i do to fix this problem? am i better off just gettin another motor? also, everytime i go on the highway or rev the engine, the engine burns the oil everytime i drive it hard. i always have to put oil berfore going on the highway or when i rev the engine alot. that i need to get new piston rings and new bearings. and i was told that i should get a new value cover gasket and seals. i checked the old gasket and it looked fine and i put high temp silicone around it to prevent any leaks. any suggestions???