I'm not new to TDR, Long time reader of Forurm. First time to start a thread. Anyway, my question is (as with most people) is about fuel milage. I drive about 45 to 50,000 miles per year. I'm considering installing a Gear Venders Under/Over drive. They claim a 20% increse in fuel milage and a 500 decrese in RPM at HWY speeds ( 70 to 75 MPH). Does anyone have any experience using this equipment? At the cost of about $4,000. 00 I don't want to rely only on the info received from G/V. At the milage I run per year and a milage allowance I receive the pay-back would be less than 1 year if it works as advertized. I'm looking for real world info not the pie in the sky BS usually spewed by the vendor.
Thanks for any info from anyone.
Thanks for any info from anyone.