Originally Posted by f1100turbo
Higher the octane the better the fuel mileage.
The increase in fuel mileage pays for the difference in cost.
Sabre owners united!
I run 89 normally as I found that I get about 1.5 mpg BETTER than when I use 87. So, at 23 gallons I'll get 34.5 miles more to tank. At 13-14 city mpg, that'll save me about 2 gallons at $3.79 or so for 89. At .17 a gallon more, that tank will cost me $3.91 more, but I'll SAVE a net of $3.67. And my Tundy seems to run smoother under load.
2000 Cherokee 31BH, "flipped axles and raised",LEDs, solar, inverter, etc..aka "boondock ready". '07 Tundra 5.7L DC-LB, modded as well.