Well my motor about 3-4 months ago was making a nickin'g noise but i thought it was normal cause most honda motors click pretty loud but it wasnt as loud.. so any way i started to deliver pizzas, helping my uncle out and so did that for about 1 and 1/2 months then stoped.. well after then the noise got a bit louder didnt think much of it.. i thought its was something loose underneath the car.. my oil change was not due till about another 700 miles... also my oil tank was leaking a bit.. so @ one point my oil light came on that has never happened to me before so i freaked and i went to the nearest gas station and adedd 2 quarts of oil and then drove back home for like 15 miles as soon as i got close to my drive way the oil light started to flash and slowly but surely my car just turned off...so i turned it back on and just drove it in.. later i towed it to my boys shop he tell me just to change motors.. he said it was the crankshaft that it lost pressure.. so i really dont know that means or if it correct or not.. so i will get a secound opinion from another shop cause the car turns on very well the noise only happens @ about 3.500 rmp anything under than that it does not make the noise.. no type of black or grey smoke.. doesn not shake.. everything runs normal execpt for noise.. by the way its a 93 lude h23 no vtec...