Took an 8 mile drive with each. Same speed same route. 50 mph
Indicated mileage (2 mpg optimistic on both vehicles). GR86= 36.5 mpg XT 33.9. Really at that short trim they are both about the same.
I made to keep the XT FA20 Turbo inactive. of course the GR86 FA24 engine is just a bored out FA20. I have 40 wt. oil in both. the 40 wt. is costing me about 1 mpg in the GR86.
Indicated mileage (2 mpg optimistic on both vehicles). GR86= 36.5 mpg XT 33.9. Really at that short trim they are both about the same.
I made to keep the XT FA20 Turbo inactive. of course the GR86 FA24 engine is just a bored out FA20. I have 40 wt. oil in both. the 40 wt. is costing me about 1 mpg in the GR86.