Start with mechanical mods if you think they will make a bigger difference.
The torque converter lockup was my biggest improvement followed by the alternator delete. Is yours auto or stick?
Aero will help at your speeds but you need to log you MPG to tell what works best on your particular vehicle. Every vehicle design responds differently.
I went 19 to 33mpg and I felt like you when I started.
Never underestimate the power of incremental ecomods!
Cheers!
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Vortex generators are old tech. My new and improved vortex alternators are unstoppable.
"It’s easy to explain how rockets work but explaining the aerodynamics of a wing takes a rocket scientist.
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