What could be a reason why a 1996 Chevy S10 blazer only gets 14 mpg?

Answer 1

The most common answer for this are (2) reasons. A. The S series vehicles are a heavy vehicle period. Look on your door to verify the GVRW. I believe mine {98 Extended cab, V-6 5 speed manual transmission} checks in at the 4200lb area. And B. Maintence... When I say maintence I dont mean only oil chages. Lets start off like this: Dirty/blocked air filter, restricted air intake passage, Dirty injectors {have them flushed out, dont simply add injector cleaner, the BIG factory mechanical fan, A/C, Low electrical output, or high current draw on something, under inflated tires Oil changes, engine oil flush, Transmission Fluid/filter change/flush, Wheel bearing drying out, brake pads squeal {metal on metal is friction}, Carring excess cargo {i.e Crap} around. Those are some symptoms to consider. But overall, the V6 in these vehicles were never gas sipper's anyhow. Considering how today's V8's are a rival on that but utalizing displacemt on demand {formerly GM's version of cutting 4 pistons off}, and hybrids {which I dont like}. Overall go with a Diesel. More power, less fuel consumption, and longevity. Erik