I have a '91 civic DX that sees alot of abuse from my right foot. It seems to be burning oil. I filled it up about a month ago and went into Valvoline for a top off (props to Valvoline). There was only a quart left, and this is the second time this has happened. I know its not leaking or there would be like eight quarts of oil in my drive way. I'm thinking piston rings, but what else could it be? Valve seats? Do you think the engine will hold out till summer time (when I do my swap)? If not where can I get internals for my lil D series, Honda Dealer? My engine is stock (intake, exhaust) with 137K miles.