I have a stock 91 Civic DX better known as Old Blue. Bought it three years ago from a friend who bought it from a friend who bought it from his friend who had bought it new. Last two owners were smokers and drinkers and because of cell phones realized that, unlike the old days, they could no longer handle the manual shifting with the beer can between their legs, cigarette in one hand and cell phone in the other. Their loss is my gain. Old Blue gets 36 mpg and 40 when I use no ethanol. Only 165k and just removed engine to replace timing belt, clutch and the various other items that go with that. Amazed that the valves were within .002 of proper adjustment.