In my 2013 LC, the manual specifically referred to the 4 gallon “reserve”. Does the 2018 manual also refer to a 4 gallon “reserve”?
Interesting, the manual calls it 4 gallon reserve ?
We had a similar discussion going about this topic on the Tundra forum a few weeks ago , and someone slammed me for calling it reserve. LOL
Several people over there claimed it was a fuel pump cooling issue that forced Toyota to try and keep several gallons in the tank at all times. I have to say that I was not really buying it.
Whatever it is the Tundra's do it too, so do the current Nissan Titan's and Armada's.
That is say they are empty fuel level warning lights on / 0 range showing only to find out you still had 5-6 gallons still in there tanks.
I traded my 17 Platinum Tundra for my 18 Cruiser, that Tundra had a 38 gallon tank and typically when the fuel light was on with 0 range showing, it would take 32 gal prox to fill its 38 gal tank. Same sort of deal, 5-6 gallons still in the tank when all the gauges said your out of gas. LOL
I will try and remember to check the 18's manuals when I get home tonight.