ExxonMobil Synergy Diesel Efficient
Has anyone run ExxonMobil next generation diesel fuel? They claim it improves fuel economy, reduces emissions and runs cleaner, and keeps injectors clean. I've run a couple of tanks of this fuel n...
Forum Discussion
philh wrote:ShinerBock wrote:
Just filled up with this fuel for the first time a few days ago. I drive 85 miles a day for work and my 15 gallon tank usually lasts about a week and a half depending on how much I drive the car on the weekends. My end of tank fuel mileage is usually 43-44 mpg while the computer says 45-46 mpg. So far my computer is saying 49-50 mpg. I will post the end result next week.
Computer calculated MPG are notoriously inaccurate. The only true measure is (miles driven)/(gallons used). In addition, driving conditions vary from day to day, week to week, that long term measurements may or may not indicate anything.
Trust me, I know because I record both on every fill up in all my vehicles and have stated how much of a difference there are between them many times in this forum. This is why I never take anyone's mileage numbers seriously when they are quoting what their computer states.
