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2003 Toyota Corolla

Question: fuel milage

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mgriffie98, 1.8L 4 Cylinder, Mechanicsburg, PA, November 18, 2010, 12:09
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i just completed 120,000 service which included changing oil, coolant, spark plugs, and airfilter. i took a 400 mile trip before service and got 33mpg. after the service same trip and got 33mpg. i do not understand with all the changes why the mpg did not increase. any suggestions?

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  • Answer #1

    Jim Taddei November 19, 2010, 08:15
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    Apparently non of the items addressed during the 120k service you just completed on your 2003 Toyota Corolla had degraded to the point where it would affect fuel mileage - that is a good thing. Generally routing maintenance is done in order to replace parts and fluids as they approach the end of there life span but before they begin causing problems. Could you have waited a bit longer to have your 120k service done? Maybe. But the longer you put off the service the greater the chance something will fail causing a breakdown or performance issue.

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    Visitor, November 19, 2010, 15:11

    thanks!!!!! i was just courious because in the past when i changed plugs fuel milage went up. i guess i waited to long to change them.

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