How would you go about replacing the valve guides. on 1995 Mitsubishi Mighty Max

I'm getting a little smoke on start up, it clears after the engine is running for a minute. I'm using about 1 qt. of oil every 2 weeks, and I'm putting 85 miles per day on it. The truck and engine only has 117,000 miles on it.

Asked by for the 1995 Mitsubishi Mighty Max
The valve stem seals are bad. When I say bad they are most likely hard and not sealing.
I'm not a proponent of a mechaic in a bottle, but try a product called WHITE SHEPPARD. NAPA, advance and most parts houses sell it. The product tries to soften the seal and get it to seal again.