I’m still happy with the BEM set, the unthreading doesn’t bother me - that was my concern - and doesn’t take long anyway, and the quality seems very good. The only problem is that I have to unlock it so often - I need a bigger tank.

 

Hi Euroman.

I installed a Titan tank on my 2006 Fx4, and was able to re-install all off-road package undercarriage plates. https://duckduckgo.com/?q=Titan+Fuel...vivaldi&ia=web

A BEM U-tube video reviewer turned the lock interface a few time with finger-tips, and I counted three and one-half 360-degree turns with the tool to lock it.

BEM's design, quality materials, 100% U.S. manufacturing, return policy and stellar phone candor makes their locking diesel & DEF caps well-worth the cost.

BEM doesn't obscure their 1 Year Warranty, and will gladly address any issues that may arise beyond that period.

See ya.

 

If you’re talking about the F1A style BEM diesel cap, if the counterbore is not coax enough to the thread hole the screw sits in, it can fool you into thinking you’re locking when you’re not. Sometimes quality slips and you just gotta let the manufacturer know.

By my experience if you’re installing everything as you should and you can loosen the locking screw with your finger tip, you never tightened it. If you call the folks at BEM, they’ll take care of it. I’ve called more than a year after purchase for rebuilds, etc. and they’ve helped me out.

As far as coming out of the filler pipe, I don’t see how that’s possible, but if you saw it, you saw it. But if you have a 22A or BF1 style BEM cap, I don’t buy this at all.

 

Hi all on our United States Of America Flag Day!

Happy Fathers Day to all Dads!

I received the BEM DEF cap for a 2018 350 Fx4. It's beyond me how anyone could criticize this masterfully machined bit O kit. I prefer BEM's Dupont Delrin DEF cap over billet alloy.

I recently learned that another Subtle Designs Tank Warden Kit buyer also discovered that their DEF cap would not even thread onto Ford's filler neck, at all. What the heck? Disgusting.

BEM caps are superbly designed, precision machined & laser-etched in-house perfectly, and have a dependable securing mechanism. BEM's DEF cap threaded easily & tightened fully.

Full-left stop to full righty-tighty took a few 360-degree tool rotations. My testing resulted in a slight left rotation and audible click indicating full engagement, and would not turn either way,

It feels incredibly secure when tested both directions with a firm hand. For those pissin;'and moanin' about excessive rotations... WRONG! Same for the DEF material complainants.

I will have the diesel cap in a few days, and fully anticipate another superbly engineered, and beautifully machined piece. I am rarely impressed these days. BEM should be proud.

The price was reasonable for such a refined mechanism, and I prefer a black DEF. How have some men become damned lazy whiners? Scuff and spray blue, if color is so important to you.

I agree Mikolaite! I see no possibility of unscrewing the securing mechanism by "Finger". I know that these caps cannot fall out if they are installed properly, as per BEM's inclusive directions.

BEM stands behind their products 100%, unlike shameful Subtle Designs. BEM informed me that the audible click may be intermittent, although proper install results in a secure fit regardless.

See y'all later.

 

Nicole at BEM should be able to confirm fitment by year, make and model, and provides excellent customer service. BEM: (785) 562-2475

I'll have my BEM diesel cap in a day, and look forward to having both installed.

 

Yep, that's what I discovered when looking into these online and why I didn't buy a set... if I would have known, I'd be rocking a set now... hindsight always 20/20...

Happy Father's day **** ers!

 

I cannot say enough about Nicole and the Customer service she provided.

I left a message on their website IIRC on a Sunday and they sent me a text message the next day on my phone with Nicole's cell number.

I sent pics of my regular fuel tank cap threads and pics of the fuel metal fill pipe.

She said they appeared to be "too angled" for the cap to work. I told her I wanted a DEF cap also. She then said she would send them to me, free of charge, so I could test fit them, which IMO, is fantastic customer service.

The set shipped Monday and arrived Wednesday.

On Thursday, out at the EVOC course, I crossed my fingers, turned it on and she fit like a glove.

@speakerfritz I believe I know what you're problem was...


Did your screw look like this... stuck up a little and not flush?

[QUOTE=Overkill2;21256044]My Tank Warden set froze up this winter... no matter what I did or what I used as a lubricant/freeze preventative, even the Planet Safe stuff that has worked wonders for my factory locking hub dials to stay turning.

Even brought the fuel cap in the house to warm it up and let the oil soak in under the lock... but no go.

They worked great in the warmer weather, above freezing, but those Tank Warden caps are not meant to be used in the freezing temp regions.

More discussion and pics later.





Hindsight is always 20/20.

 

@Overkill2 that sucks. Must have gotten some moisture in the lock mechanism? I would think some alcohol would have melted it out.

 

I was trying to figure out a way to maybe buy a small butane torch to melt the ice buildup in the fuel cap but said **** that because I ain't doing that every few days or so during the winter when I need fuel.

The DEF cap was frozen also when I had to put more DEF in during winter this year... when I took it out to replace it with the BEM cap, which is an awesome cap that threads and screws right down tight, there was water dripping from the bottom of the cap so it is my belief that there is no seal to prevent moisture from getting down into the locking mechanism which in freezing temps, freezes the lock from turning.

Nicole told me about an upstate New York customer who had the Tank Warden diesel fuel cap locking tabs, made of plastic, break off on his fuel cap and Subtle Design told him he needed to buy a new set as it sounds they would not warranty their products. They obviously did not do any testing of functionality in cold freezing weather, which blows for purchasers like myself in that climate in winter.

She also stated they are aware of the Tank Warden set and have checked them out. We also agreed that its a good concept they came up with but a better and stronger material to use would have been stainless steel because there probably would have been enough flex to work with their concept of arms with the locking tabs.

As I learn how many full turns, or two revolutions of the key, to get off the cap but my preliminary first use with the locking cap shows about 3 to 4 full turns, which is 6 to 8 turns of the key, to get the cap off.

More later.

 

These are the pics I sent Nicole...


The aftermarket diesel fuel cap I bought because couldn't find the original cap that was somewhere in the garage...








I should have taken a pic when I first got the BEM fuel cap because it appeared to be solid... but was not.


So the screw was not flush but seemed to be locked on...


This is what it looked like. Sent Nicole the pics and she was going to send me a video link, also told me to press down harder when screwing it on. I fixed it.


The rubber seal needs to open up to enclose and seal the cap on the end of the filler pipe to the cap.













With the open seal, the screw snugs right down where its supposedly to.

What's nice is that it is probably about a quarter turn for the cap to lock on... or maybe not even. Then turn bolt down. Feels solid because it is... a piece of machined aluminum locked into threads on the metal threaded pipe. Same with the DEF cap.

I never liked the way those Tank Warden caps moved around because they are not threaded into the filler pipes of either...



DEF cap...


Well machined piece of plastic...










Snugs right on the DEF filler pipe threads.

 

I have the BEM caps. I’ll be going to a slant cap for the fuel cap. My BEM cap is super finicky about actually locking in place and the pin has damaged the filler nozzel. Def cap zero problems.

 

My BEM caps are still working well, look brand new, no complaints at all.

 

That sucks. You ever contact BEM or probably specifically Nicole about the problem?

I see you have a 2021 so you should have a 22A model. It seems your cap functions different from the older trucks like mine.

https://www.bem-auto.com/product-pag...22-ford-diesel



I'd contact them if you haven't.

Good luck.

 

So @speakerfritz did your screw not come down all the way like I showed in my pics upon initial install because I think the seal never opened up all the way?

 

I’ve had no issues with my Tank Wardens so far but my truck lives in a heated garage. They do look great but based on some of the posts here I wonder if I should have gone with BEM…