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Why is it that a 13 liters of gasoline drives only 77 plus miles? any suggestion

(2004 Kia Sorento)
in Plano, TX on March 31, 2013
anything to repair or replace?
Displaying 2 answers & 2 comments
Popular Answer
on March 31, 2013
full tune up. upgrade to premium plugs(e3). examine ignition coils(replace if damaged). rec. performance grade coils as replacement(accel's more cost effective than OEM replacement) as they offer more conductivity(bigger spark, better burn, more power).
rec. upgrade conv. air filter to high air flow design. more air, better burn.
rec. oil stabilizer treatment next oil change. this will recondition seals and cylinders(improve compression).
rec. fuel system clean. ethanol treatment to 1 tank premium fuel. ethanol blend in fuel causes build up fuel system, combustion chambers, exhaust system and causes increased wear to spark plugs.
make habit of checking tire pressure. insufficient or unbalanced tire pressure can kill on road momentum which kills fuel economy. be mindful of your suspension for the same reason as tire pressure. watch for soft shocks, wheel alignment, worn suspension or steering components. repacking wheel bearings will help also.
have brakes inspected regularly. if they don't release properly then this also kills momentum.
most of this stuff you can do yourself(save money on shop charges). you may not get big gains emediately from this approach but over time it will help.
on March 31, 2013
Thanks Bro will try to do your suggestion...Regards!
on March 31, 2013
25 miles to a gallon you might not get any better than that
you could try a full tune up it might get you 26 mpg
on March 31, 2013
Thanks Bro any idea how much the full tune up plus the required parts?
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