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The FX35 has no access to the transmission fluid to check its level or health. That's right, NO tranmission fluid dipstick. I would NOT recommend towing anything with a vehicle that has no access to the transmission fluid other than at the shop removing the transmission pan bolts while draining and changing the transmission fluid.
I thought I read on another forum that you can use a dipstick from a 350z or a g35. Has anyone tried this? I am also one of those people that is super annoyed with modern cars not being DIY friendly.
I can't check fluid levels!? Seriously!

I am looking for a hitch to put on my 2005 FX35. I might occasionally tow a boat that's about 2500lb, but more likely is a small pop up camper and a 5x8 utility trailer I use for mulch, engine blocks, etc.
Does anyone have a preference on hitches? I really haven't been able to find very many pictures from the ass end with a description of the brand of hitch. I either suck at google search or no one takes pictures and describes the hitch.
 

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While the FX can tow up to 3,500 lbs I would not recommend towing anything more than 2,000 lbs.

Your gas mileage will suffer, the rear suspension will squat, and your engine and transmission will work harder.


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So I put a Curt hitch on my 04 fx35 and can attest to the fact that in order to get the inner 2 bolts installed as instructed would require removal of the rear bumper cover. I just purchased 2 grade 8 bolts, fished the nuts into the aluminum bumper and tightened. I got the oem harness and what a breeze that was. Total time on that was around one hour. I didn't exit the car with the wires as the antifreeze the put on the roads would mess up the connector. I stripped off the covering and brought it out the passenger side access panel when I am towing.
 

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Well it got 17 mpg average with the bike but to be honest the 4.3 Astro van did it better. I do love this car though and when the wife upgrades to a 4Runner I might just keep this for myself.
 

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Hey Guys,

After reading this helpful thread, I wanted to ask for an additional opinion. Would you rather flush and change trans fluids every spring as opposed to relying on the cooler itself ? This is the bubble i am in. I have an FX35 2007 AWD. Midwest terrain ( 99% flat ), towing 3200 lbs when fully loaded ( boat ).

If cooler does help, what kind of "cooler fluid" do i get ? Obviously it cant just be any. Do these transmission shops even know what they're pouring in ??? ?

Its 128.000 miles now and this will be my second season towing. Once a week 10 miles ( once a month 50 miles ). Ramps are very smooth.
 

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I did the drain and fill 3 times then dropped the pan and did a gasket. I also put in Lube Guard. The local wrecking yard cut their returns in half with just this, I use it in all my rides now.
 

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I have exactly the same concern, the 2010 FX 35 owner manual does not rate the RWD for towing. It rates the FX 35 AWD for 2,000 pounds and the FX 45 for 3,500 pounds. I do not understand the reason behind that. Does anybody know what is the reason for that?
 

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The reason is simple. The FX is a relatively short vehicle, and putting weight in the rear will make the front to be raised. If it is only RWD the vehicle maneuverability may be compromised, hence the reason for AWD to make sure the vehicle stays in track.

Regarding the difference between 2k lbs vs. 3.5k lbs this has to do to the fact that the 6 cylinder engine, with the overall configuration of the vehicle may put the engine at high stress is towing more than the recommended weight, and hence the 8 cylinder is more powerful the vehicle can deal with more weight as the engine will not be as stressed as with the 6 cylinder.

Would I tow anything greater than 2k lbs even on the FX45? No, I would not. Why - the vehicle is a unibody, if it was a body on frame like the older Pathfinder, the Xterra or the Frontier then it is a different story.


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I towed an 18' i/o bowrider for several years with my FX with no major issues.
My trailer didn't have brakes, so I went through FX brake pads faster than normal. I sort-of fixed this problem when I added the FX50 big front brakes. The car will obviously react slower (acceleration, braking, turning) when you're towing something heavy but as long as you take it easy you should be just fine.
 
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