Hi I just bought a 1993 S-10 Blazer 2 months ago and since then it has been getting worse gas mileage then when i first bought it, it has about 180,000 miles and the high output
V6 and I'm getting like 10 miles per gallon andcity driving is all i do. I was told that putting on a k&n air intake + filter would help butI did that and a flowmaster exhaust and it just made my gas mileage worse.
I was just wondering what I should do at this point, maybe put in new spark plugs and wires? It runs great and I sadly have considered selling her to get a toyota instead, I just wish it got better MPG.

 

Oh man, that sounds kinda lame,
You may just want to get a regular tune-up,


Get the pump/valve replaced/clean and such.
I had horrible gas mileage turned out, my truck needed a new air filter, new gas filter, and a few other fuel system replacements.

Try putting in Gas treatment to clean your engine out - since it's older, and a nice big vehicle, someone probably took it offroading at least once.
Buy some nice Gas, Oil, and transmission treatment fluid, and it should run better and get better mileage

But you SHOULD replace the spark plugs anyways.
[Just to let you know, I'm not very knowledgeable about vehicles, but I've found those usually have helped me in the past.]