just in case tune up includes:
-oil change
-air filter change
-fuel filter change
{and a lot more but those can change the mpg}
also check your tires if they need air it will drop ur mpg.. believe it or not..
seafoam..
buy it and put 1/3 on the pcv 1/3 fuel and 1/3 on oil (or something like that idk the measurements) after putting it on oil change the oil after 200-300 miles
+1
