approx 6-8 months ago my engine started making a slight knocking noise. 2 or 3 knocks every now and then, not consistently. when i got home i checked my oil and the engine was bone dry. i put oil in it and then soon after took it in to a mechanic who flushed/cleaned the engine out and said he wasn't sure why it would be completely empty like that. there didn't appear to be any leaks or problems, and it had only been about 5k miles since my last oil change. he told me to try using a synthetic blend from now on and so i have been. since then i haven't had any problems and hadn't heard the knocking noise again...until today...

so i'm driving and i hear that same knocking noise and i think "oh great". i pull over and sure enough the engine is bone dry again. i've had one oil change since the last episode and they never said anything about the engine being empty of oil and i am just about due for my next oil change. it's only been about 5k miles from my last oil change. i had a synthetic blend in there and the guy said i'd be good for 7,500 miles. i do a lot of highway commuting with this car. any ideas why i'm losing or burning all that oil and what i should do?

thanks.

 

alot of times you won't see smoke if its burning oil did you check for leaks oil pan, filter drain plug all the obvious places also check the engine coolant for out of the ordinary color. also synthetic oil is thinner then regular oil so it will burn off faster.

 

Honda's naturally burn oil between oil changes. Actually all cars do. Technically you are supposed to check your oil every other time you fill up with gas. Regular oil I say 3,000 and synthetic 5,000. I know Honda says 7,500 for their oil change intervals but Americans don't pay attention enough to their cars for that. I would check for leaks as well oil pan, valve cover gasket, font main seal and cam seals. Rear main seal as well but this is the most expensive to replace just because of labor.

 

thank you both for your advice.