I have a 94 v6 3.0 pickup, 166,000 miles, have had one issue with the engine since Ive owned it. The engine has a clicking noise that speeds up when I accelerate at low speeds. But this isnt the issue im asking about. My problem is after about 2100 miles after an oil change, my check engine light comes on, and I check my oild, and its too low. I dont have any oil stains in my parking lot, no smoke coming out the tail pipe. Only things Ive done lately is, oil change every 3k, new air filter, flushed the radiator 3k miles ago, and did some Seafoam. The truck is currently running ok, but I know burning that much oil cant be good, any ideas? I would like to have some good info when I bring it into my mechanic if it needs work.