The aero penalty you get with the trailer huge compared to the weight.
In my diesel suburban it takes around 500lb of cargo to reduce fuel economy 1mpg.
Just putting my small trailer behind it which weighs about 250lb empty and costs me any where from 2 to 4mpg without anything in it.
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1984 chevy suburban, custom made 6.5L diesel turbocharged with a Garrett T76 and Holset HE351VE, 22:1 compression 13psi of intercooled boost.
1989 firebird mostly stock. Aside from the 6-speed manual trans, corvette gen 5 front brakes, 1LE drive shaft, 4th Gen disc brake fbody rear end.
2011 leaf SL, white, portable 240v CHAdeMO, trailer hitch, new batt as of 2014.
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