I traded a half-ton pick up (ironically? weighing about 3 tons) for a 1.9 ton diesel burning car. So please forgive me if I randomly geek out about it.
I filled up this morning and managed to squeeze in an additional 2.53 US gallons after the initial pump click off. I am averaging 42 miles to the gallon currently so that is an extra ~100 miles per tank! I am going to put a row of stars below this and include the engineer's explanation below of why it works.
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Gasoline engines require an "evaporation canister" to catch the fumes from the evaporating gasoline before it escapes into the atmosphere. This is why you throw a code and the check engine light comes on in modern automobiles as the pressure from the gas cap is integral to the emissions control systems.
Diesel is a different animal. It is highly resistant to evaporation so no evap canister required. I do however have a DEF (diesel emission fluid aka urea aka synthetic bovine urine) that is injected into the exhaust stream do reduce particulate emissions (the black smoke)
Two other, annoying, characteristics of diesel fuel are foaming and it stinks. The reason the additional fuel fits in the tank are 1. you are waiting for the foam to subside and 2. the filler neck has no secondary exit between the fuel door and the tank.
Remember the evaporation part? Unlike gasoline, when you spill diesel on yourself it stinks FOREVER. (not literally) So I keep baby wipes handy and wipe the pump handle before I grab it, work very hard to avoid getting the fluid on the paint, wiping it immediately and then I have some detailer spray I keep in the truck. No muss, no fuss. Hands get cleaned before I reenter the vehicle.
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tl;dr - geeky ramble about diesel
Too off topic?
I filled up this morning and managed to squeeze in an additional 2.53 US gallons after the initial pump click off. I am averaging 42 miles to the gallon currently so that is an extra ~100 miles per tank! I am going to put a row of stars below this and include the engineer's explanation below of why it works.
****************************************************
Gasoline engines require an "evaporation canister" to catch the fumes from the evaporating gasoline before it escapes into the atmosphere. This is why you throw a code and the check engine light comes on in modern automobiles as the pressure from the gas cap is integral to the emissions control systems.
Diesel is a different animal. It is highly resistant to evaporation so no evap canister required. I do however have a DEF (diesel emission fluid aka urea aka synthetic bovine urine) that is injected into the exhaust stream do reduce particulate emissions (the black smoke)
Two other, annoying, characteristics of diesel fuel are foaming and it stinks. The reason the additional fuel fits in the tank are 1. you are waiting for the foam to subside and 2. the filler neck has no secondary exit between the fuel door and the tank.
Remember the evaporation part? Unlike gasoline, when you spill diesel on yourself it stinks FOREVER. (not literally) So I keep baby wipes handy and wipe the pump handle before I grab it, work very hard to avoid getting the fluid on the paint, wiping it immediately and then I have some detailer spray I keep in the truck. No muss, no fuss. Hands get cleaned before I reenter the vehicle.
*************************************************
tl;dr - geeky ramble about diesel
Too off topic?
