Scotty, I have a 2015 Toyota Corolla Sport automatic CVT transmission w/ 105,000. I just had the 100,000 mi maint. just done at the dealership 30 July this passed Friday, spark plugs replaced, Tranny CVT fluid complete exchange TFlush , and break fluid changed, new tires Goodyear Eagle Sport All Season, new 7 year battery. Now I am getting 10 mi. per gallon less than I did before I had the work done. What could possibly be wrong? I have an appt. on this Thursday Aug 6th.
Much thanks,
Ron
In the city? On the highway? Any other symptoms? Which tyres did you have on, before?
Did they use the correct engine oil for your engine? If they did, possibly a combination of new tyre tread & all season tyres.
With that said, check your cold tyre pressures to make sure they are correctly inflated -
It's the new tires that cause the lower gas mileage. It happened to me when I went from the expensive Michellin tires to the cheaper Firestone tires.
