My daughter's 95 Honda Civic (150K miles) started idling rough on the last 30 miles from a trip to Boston. I informed her to drive home since she stated at higher revs it appeared OK. To make a long story short, it was taken to a Honda dealer and diagnosed as having no compression in #2 and that it may be a stuck valve -- estimate to repair worst case was $939. The car uses about 1 quart of oil per 1000 miles with no leaks near oil pan, so maybe was burning oil (even though not noticable). My daughter wants to sell the car vs spending over 1/3 what the car is worth (sine she can get along without a car in Boston)
-- all maintenance has been performed on schedule and otherwise the vehicle is in decent shape.
I informed her that she may only be able to get less than $500 for vehicle. Since the decision was to sell, I thought to try to unstick the valve (dealer's guess without further diagnosis) using Gunk's Motor Flush -- following the directions using twice for high milage vehicles and then follow that up with a treatment of Marvel Mystery Oil in the crankcase if the first method does not work. If both do not work, then the buyer will have a very clean engine that needs some work. Is this worth a try?
Opinions?
Rick