I have a 453 and mileage seems ok right around 34mpg! My question is can i go to 200-250 on a tank any one drive that on a tank? And seems like the gas guage is always off but who knows
EG, when you get down to 0.2 you still have some range left as your 08 451 has a 10 gallon tank. Putting in 8 to 8.5 gallons means you still had 1.5 to 2 gals. as a reserve.I have a 2008 451 and I usually get over 300 miles before I fill up. I have checked my MPG on every tank fill up since new and my average MPG is 40-45 depending on the type fuel I purchase. I started using 87 octane a few years ago because of the price difference and I haven't noticed any change in MPG. I have run the fuel gauge down to 0.2 many times and it usually takes about 8-8.5 to fill it up.
Doubt there is much "effort" going into amending the owners manual today as it was so much easier to just DISCONTINUE the 453 ICE. :shrug:The manuals advertise fuel quantities that are different than experience, hence the confusion that often occurs with adopters of 453 ICE vehicles.
Thankfully the dealers are amending every manual they can get their hands on...though that does require the car to actually reach the dealer first.
Welcome to SCOA!I have a 2008 passion purchased new and have always used premium 92 grade. I am very frugal so buying that HURTS !!!! How many miles do you think you have driven since you switched grades of gas?? have you noticed any performance issues or engine noises you would contribute to the change of gas grades?