So, the last fillup on the Tundra was a good one. It was an expensive one, because gas was at $1.13/L, and I was down past 1/4 tank (100L to fill!!!).
BUT, I'm finally starting to see some decent (relatively) fuel economy. Part of it has to do with the trip out of town that the wife and I took on the weekend. I saw an indicated average (trip computer) of 14.5L/100kms. But then in the week of normal driving that I did, it wasn't much worse. This tank's average was 17.9L/100kms.
I think the warmer weather is helping a TON. It seems that constant -20C is HELL on this truck and its fuel economy. I have high hopes for the summer, and hope to see some decent numbers (obviously, it will still be bad, but it shouldn't be anywhere close to as bad as I've been seeing this winter).