Originally Posted by
Fozziekyu
I tried one bottle of Techron , unfortunately I feel nothing has changed ,I guess this is just how Mirage is
but I find out Costco give me bad MPG while Shell give me best MPG, I got a 27mpg with no traffic at all in SF City.... lowest in history
Shell could get my car reach 45mpg in highway and Costco will only make 36mpg in a similar trip, not sure why though
Outside air temperature has a big impact on the fuel economy of the Mirage. Not sure if either tank of gas had a similar operating environment..
__________________________________________
View my fuel log 2015 Mirage ES 1.2 manual: 49.6 mpg (US) ... 21.1 km/L ... 4.7 L/100 km ... 59.5 mpg (Imp)