1997 Honda Accord valve troubles
Hey guys first post here! I was at the shop to get an oil change and when they checked the spark plugs, there was oil in most of the cylinders. I ahvent been noticing much more than a HUGE loss in gas mileage (there is about 155,000 on it now). I believe that the tank holds 17 gal. and only at about 6 months ago i was getting over 400 mpg. Recently when i have filled it up completely i am only getting around 215 mpg. I am not sure if the cause is my faulty valves or not, any info would be greatly appreciated.