|
i have a large external grill block on Jeep 2, i have noticed a decent increase but i cannot give numbers at the moment because i added it 90 miles into the last tank, and will not finnish off the tank i am on for another 3-4 weeks. anyhow, observations on my end, i tow other vehicles quite frequently, 3 cars in the last two weeks, and have had no overheating, i drive mainly in the city and a grill block is most functional on the highway.
if you wanted the grill to be visible you could always use a piece of plexi glass, it doesnt have to be thick but i definately understand not wanting it to be visible so i wont nock on you for putting it behind.
anyhow, remember, every little bit helps and grill blocks are cheap so even if you only get 1 mpg increase you still come out a little farther ahead.
|