Uffe wrote:
Wow man that looks awesome
Me want that now! ...err but new tyres first!
How far have you pulled the trailer to date with the KJ you think? How do you use the O/D off button? What about rear diff and transmission oil change intervals?
Sorry to be asking all these questions, I'm just very interested, please excuse me

Hi Uffe,
No problem on the questions, it's quite on-topic given the thread.
We got the trailer late last fall, and were only able to take it on two trips before a cold snap forced us to winterize. The first trip was to a site 100 miles away, the second was to a site about 190 miles away. We got about 14mpg towing which I think is reasonable. The Inmotion tune really helps pull up the hills - after the first trip, I decided we needed the tune for the second trip. With the tune, I can chug right up grades at my desired speed without needing a running start to stay locked up.
I kept O/D on most of the time, and only turned it off if we come up on a steep grade where I couldn't maintain 60mph (rare with the Inmotion tune). We changed all drivetrain fluids before our first tow, and I may reflush again with Amsoil stuff before next spring's first pull.
When we got the Inmotion tune, I plugged the MAF back in to shut off the CEL. As a result, the engine ran hot (about 5/8 to just under 3/4) when pulling up extended grades on the second trip. At first, I thought this was because of the Inmotion tune, but now I realize it's due to all that very hot exhaust (under heavy load up the hills, mind you) being pumped back into the intake. I've since reapplied the ORM, and this will help. We've also installed a Magnaflow cat-back which will reduce EGTs (and hopefully coolant temperature) a bit more.
The SEGR is also on my list. I'm on the current "round 2" waiting list.
- Chris