|
Everything that puts a load on the engine will undoubtedly use some gas, but it depends on how much energy is required. I barely notice any drops in FE when I use my radio but if I used it for a longer period of time and had more energy draining apps connected the effects would be more pronounced.
Just ran some quickie numbers:
annual drive = 12,000miles
without SGII = 38mpg
with SGII = 44mpg
assuming gas costs $4, then without SGII I spend $1263.16 on gas per year.
With the SGII, I spend $1090.91 per year or I save $172.25 annually which pays for itself. Obviously these are only rough estimations and I currently drive better than 44 mpg and the reg gas here costs about $4.35 last night.
__________________
My 5 pillars of fuel efficiency:- driving style
- aerodynamics
- tires
- weight reduction
- engine maintenance
|