[dmafanp]

so i had a partial grill block on my vehicle and i didnt notice much of a mpg improvement then i added the full grill block and my mpg jumped at least 30 % from 20 mpg on a daily commute to 30 mpg on a daily commute ,, it gets cold where i live and my engine temps are stable ,, also less noise from the engine in the cabin. i also have a block heater each time i use it i save 40 cents, adding up to 1 dollar avg savings for 3 days or 100 dollars in savings during the winter months.