Its exactly as snoopyslr stated... Also keep in mind fuel reserves.. Once you hit 0 in range.. You can technically go about 30 more milesMy dash is always exactly 2mpg higher than my RL mpg. I'm still running factory tires with aftermarket wheels (same size).
That number is figured out based on vehicle speed (distance traveled) and fuel injector pulse latency (how much fuel is injected). Theoretically, no amount of modifications would change that number unless you change the circumference of the tires or change the displacement of the fuel injectors.
I give myself about 30 mile buffer when I hit 0 also. I'll be driving about 15 miles past empty today on my way home before I get to my gas station (across the street from my house).Its exactly as snoopyslr stated... Also keep in mind fuel reserves.. Once you hit 0 in range.. You can technically go about 30 more miles
Its well within margin of error in my opinion.. Within less than 2% i believe.. Thats alot better than most cars..especially when its a giant math problem that keeps updating itself.. The math problem is trying to estimate what you will have for range based on your driving pattern since you last filled up.. So if you fill up and do 200 miles half city half highway.. It will think it will be the same type of driving for the remainderThe MPG reading is not accurate with stock parts, so it might actually be better?
I'm not talking about the estimated distance, I'm talking about the fuel efficiency indicator, in MPG. It is always 5-10% off versus hand calculation (as evidenced in my fuelly link). Car says 38 MPG... it's actually 36. Always.Its well within margin of error in my opinion.. Within less than 2% i believe.. Thats alot better than most cars..especially when its a giant math problem that keeps updating itself.. The math problem is trying to estimate what you will have for range based on your driving pattern since you last filled up.. So if you fill up and do 200 miles half city half highway.. It will think it will be the same type of driving for the remainder