On my trip home last night, the car had been sitting in single degree temps for several hours. When I started, the water temps said 26f. More than 20 degrees colder than current temps! About a 15 second warm up, and I was off. I was about 2 miles from the highway, and only had to stop once. while on the highway, as water temps were approaching normal operating temps (lower grille is totally blocked), I switched over to IA temps, and it said 4f!. Mileage was pretty bad for me, struggling to hit 25 mpg. I never went over 58 mph the whole trip. When I pulled into the garage, Scangauge read 25.7 mpg.
That is terrible for my car, but considering the extreme temps, not all bad.
it was -15 the night before last, -5 yesterday, -20 last night, -5 today. my antifreeze froze in the hoses and turned to slush in the block which made for an interesting trip to school yesterday. I added a bunch of straight anti-freeze and it was ok last night and today. nevertheless the oil in the engine and trans were like molasses (the trans takes ATF and was still hard to shift) I've been hovering around 19-22 mpg the last couple tanks and it doesn't help that it developed a leak in the exhaust manifold recently
1991 Toyota Pickup 22R-E 2.4 I4/5 speed
1990 Toyota Cressida 7M-GE 3.0 I6/5-speed manual
mechanic, carpenter, stagehand, rigger, and know-it-all smartass
"You don't get to judge me for how I fix what you break"