No, no, and no.Mertz said:Does anyone know where to get a good deal on a throttle body spacer for 1992 and 1999 3800 GM (Buick) motor. Do they do what they say they do, more hp, more torque and more mpg? I don't want to spend $100 just to see if they work.
My old 3.8 Series I '94 LeSabre got 29 average on a 50/50 run of 70 MPH on the interstate and running up and down the hills around Dubuque, IA. It would get about the same on a straight 70-75 MPH Interstate run with the AC on and I never wasted any time on the entrance ramps! It had 203,000 miles on it when I sold it and would still pull the same mileage. I'm sure someone with "smaller feet" could have pulled mileage in the low 30's out of it.1ownerT said:The 3800 gets at or very near to 30 mpg highway, what is your mpg?