Join Date: Dec 2009
Location: Out there, somewhere
It's nothing to fret over. Road grime, when flipped up and comes in contact with a vehicle that's driving down the road, get's immediately burned off of the exhaust system. So, you never, ever smell anything. But, as stated, when a toad is being dragged behind a motorhome, it accumulates any and all road dust, oils, and anything else that will stick to that underside surface of the toad, including the exhaust system.
So, when you start up the toad, right after you've just towed it, that accumulation has no choice but to burn off, as the exhaust system heats up rapidly.
And, no, it's not just more applicable to "Wranglers". As many have stated, they've smelled it on any and all towable toads out there, no matter what brand, make, model, year. We've towed 9 different Jeeps, 1 Honda CRV, 1 GMC Sierra 1500 4x4 Extended Cab, and one Toyota long bed pickup. Each and every one of them produced the same smells, right after un-hooking and starting up to drive them. It's a given. About the only variable in the situation is, what kind of roads one's towed their toad on. Freshly oiled, gravel and dusty ones, snowy, wet-raining, and more.
The more ugly the road surface you're traveling on, the more possibility of more grime accumulating on that COLD exhaust system, to be burned off when you start it up.
2004 ITASCA HORIZON 36GD, 2011 GMC Sierra 1500 4x4 Toad '08 GL 1800 Gold Wing
Retired-29.5 yrs, SDFD, Ham - KI6OND
Me, Karla and the Sophie character, (mini Schnauzer)