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BamZipPow · 03-24-2013, 12:15 AM

Had the pleasure of towing a 6x12 U-Haul trailer loaded with furniture. My question is...does my aerodynamic additions become a hindrance when towing a big trailer? Would've it been better if I had a normal cab-high camper top installed? The towed trailer is higher than the top of my truck roof. The gap between the back end of the aero cap to the front of the trailer is around 5'.

My indicated mileage over 110miles was 15.2mpg (1 extra stop) with the trailer loaded and 17.6mpg coming back empty. I haven't made this run before without the trailer. I'll git my chances in the upcoming months.

I normally see between 25-28mpg highway with all my aero mods installed.

My aero mods fer this run are:
Full belly pan
Rear diffuser (4°) extended beyond the rear bumper
Partial side skirts
Rear skirts
Rear wheel skirts
Rear wheel strakes
Aero cap
67% top grill block

I had to remove my lower grill block so my transmission coolers would become active since I was towing a heavy trailer. I'm guessing the loaded trailer weighed in over 3500lbs.

03-24-2013, 12:15 AM	#1 (permalink)
BamZipPow T-100 Road Warrior Join Date: Apr 2008 Location: The Woodlands, TX Posts: 1,921 BZP T-100 (2010) - '98 Toyota T-100 ext cab - 3.4L/auto SR5 Last 3: 24 mpg (US) BZP T-100 (2011) - '98 Toyota T-100 ext cab - 3.4L/auto SR5 Last 3: 23.66 mpg (US) BZP T-100 (2009) - '98 Toyota T-100 ext cab - 3.4L/auto SR5 Last 3: 19.01 mpg (US) BZP T-100 (2012) - '98 Toyota T-100 ext cab - 3.4L/auto SR5 Last 3: 25.45 mpg (US) BZP T-100 (2013) - '98 Toyota T-100 SR5 Last 3: 25.79 mpg (US) BZP T-100 (2014) - '98 Toyota T-100 SR5 Last 3: 23.18 mpg (US) BZP T-100 (2015) - '98 Toyota T-100 SR5 Last 3: 23.85 mpg (US) BZP T-100 (2016) - '98 Toyota T-100 SR5 Last 3: 17.62 mpg (US) BZP T-100 (2017) - '98 Toyota T-100 SR5 90 day: 20.78 mpg (US) BZP T-100 (2018) - '98 Toyota T-100 SR5 90 day: 20.19 mpg (US) BZP T-100 (2019) - '98 Toyota T-100 SR5 BZP T-100 (2020) - '98 Toyota T-100 SR5 2012 Scion iQ - '12 Scion iQ Base Thanks: 3,502 Thanked 1,395 Times in 968 Posts	Aerodynamic vehicle towing a non-aerodynamic trailer... Had the pleasure of towing a 6x12 U-Haul trailer loaded with furniture. My question is...does my aerodynamic additions become a hindrance when towing a big trailer? Would've it been better if I had a normal cab-high camper top installed? The towed trailer is higher than the top of my truck roof. The gap between the back end of the aero cap to the front of the trailer is around 5'. My indicated mileage over 110miles was 15.2mpg (1 extra stop) with the trailer loaded and 17.6mpg coming back empty. I haven't made this run before without the trailer. I'll git my chances in the upcoming months. I normally see between 25-28mpg highway with all my aero mods installed. My aero mods fer this run are: Full belly pan Rear diffuser (4°) extended beyond the rear bumper Partial side skirts Rear skirts Rear wheel skirts Rear wheel strakes Aero cap 67% top grill block I had to remove my lower grill block so my transmission coolers would become active since I was towing a heavy trailer. I'm guessing the loaded trailer weighed in over 3500lbs. __________________ Dark Aero-The world's first aerodynamic single wheel boat tail!