Is any one familar with this tow bar?

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Nov 11, 2009
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Let me rephrase that. Service book states "completely fill Adblue tank" which I assumed meant they top it up. I understand what you are saying about shelf life and it makes sense. Maybe they are expecting the adblue to be nearly finished after 12500 miles> I wonder if it is possible to drain an adblue tank?
Why not keep five litres in the car so that when the warning lights show fir low level you can run it right down then start to replace with a quantity more aligned with your usage. I assume on a Jeep it can be replenished by the owner quite easily.
Here’s a link that gives some useful information but doesn’t cover life once installed in the vehicle. Some sites quote 6 months in vehicle life. Which seems at odds with the top up frequency aligned with annual service intervals. But at the end of the day if it doesn’t work at optimum you will just emit a bit more NOX.

 
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Jul 18, 2017
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Why not keep five litres in the car so that when the warning lights show fir low level you can run it right down then start to replace with a quantity more aligned with your usage. I assume on a Jeep it can be replenished by the owner quite easily.
Here’s a link that gives some useful information but doesn’t cover life once installed in the vehicle. Some sites quote 6 months in vehicle life. Which seems at odds with the top up frequency aligned with annual service intervals. But at the end of the day if it doesn’t work at optimum you will just emit a bit more NOX.

Thanks for the link. They probably do it at every service as they know it is unlikely that you will use up the 8 gallons in 12500 miles? Just a thought.

However regarding the OP I think I will take the Jeep top a local fitter to see if they can identify the towbar which is probably a rebranded towbar.
 
Nov 11, 2009
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Thanks for the link. They probably do it at every service as they know it is unlikely that you will use up the 8 gallons in 12500 miles? Just a thought.

However regarding the OP I think I will take the Jeep top a local fitter to see if they can identify the towbar which is probably a rebranded towbar.

From their website Trimotive do look as if they are a “factor” and may obtain their own label products from a specialist maker of the product. However it still has to meet the various standards and type approvals. So they may still be able to supply the detachable towball. But if not then it may be a replacement towbar and towball installation.

Just a thought the previous owner hadn’t stowed the detachable part in the boot underfloor storage area. That’s where mine lives in a custom stowage.
 
Nov 6, 2005
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Why not keep five litres in the car so that when the warning lights show fir low level you can run it right down then start to replace with a quantity more aligned with your usage. I assume on a Jeep it can be replenished by the owner quite easily.
Here’s a link that gives some useful information but doesn’t cover life once installed in the vehicle. Some sites quote 6 months in vehicle life. Which seems at odds with the top up frequency aligned with annual service intervals. But at the end of the day if it doesn’t work at optimum you will just emit a bit more NOX.

The issue if the Adblue goes "off" isn't just that NOx levels will rise - it's mainly that the Adblue starts crystallising and blocking the pipe/injector necessitating complete replacement.
 
Jul 18, 2017
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Just a thought the previous owner hadn’t stowed the detachable part in the boot underfloor storage area. That’s where mine lives in a custom stowage.
Done that check. We never store ours there as a hassle arriving at caravan and then realising you have to empty the rear to lift the floor board to access the tow hitch. Once was more than enough! :ROFLMAO:
 
Nov 11, 2009
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The issue if the Adblue goes "off" isn't just that NOx levels will rise - it's mainly that the Adblue starts crystallising and blocking the pipe/injector necessitating complete replacement.
Am I glad I changed both cars to petrol plus chain cam some three years ago. 😂
 
Jul 18, 2017
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Some sites quote 6 months in vehicle life. Which seems at odds with the top up frequency aligned with annual service intervals. But at the end of the day if it doesn’t work at optimum you will just emit a bit more NOX.


Referring back to that link regarding grades of Adblue it states that if ambient temperature is about 10C or less the fluid should be okay for a minimum of 36 months or have I misunderstood? Totally new to this Adblue thingy!
 
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Am I glad I changed both cars to petrol plus chain cam some three years ago. 😂
And probably glad you didn't get a direct injection petrol as they have their own set of issues.

I reckon 1990 cars were the sweet spot, just before catalytic converters were mandatory - but then CO2 would have been much higher.
 
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Referring back to that link regarding grades of Adblue it states that if ambient temperature is about 10C or less the fluid should be okay for a minimum of 36 months or have I misunderstood? Totally new to this Adblue thingy!
That's for storage in a sealed container - once you've refilled with Adblue and spilt a bit, you'll see how quickly it crystallises in the open air.
 
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And probably glad you didn't get a direct injection petrol as they have their own set of issues.

I reckon 1990 cars were the sweet spot, just before catalytic converters were mandatory - but then CO2 would have been much higher.
I can remember smell of leaded fuel in the cities in the sixties and severnties.
 
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I can't say I noticed anything different when we switched from leaded petrol to unleaded.
I lived in the middle of Hillbrow, Johannesburg in the seventies and it was a horrible smell. Many years later after they switched to unleaded when I went back, no smell, but even more traffic.
 
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Referring back to that link regarding grades of Adblue it states that if ambient temperature is about 10C or less the fluid should be okay for a minimum of 36 months or have I misunderstood? Totally new to this Adblue thingy!
That referred to Adblue stored in its container. That’s why I added the comment about some websites quite 6 months in the cars tank.
It really cannot be a big issue as millions of vehicles in UK, Europe and around the world successfully run their cars without any concerns. Methinks too much thinking isn’t necessarily a good thing.

PS Since it’s two thirds deionised water and one third pee I wonder what it does in very cold temperatures 😱
 
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And probably glad you didn't get a direct injection petrol as they have their own set of issues.

I reckon 1990 cars were the sweet spot, just before catalytic converters were mandatory - but then CO2 would have been much higher.
My Subaru is a direct injection engine and they don’t show any unacceptable trends on reliability websites I’ve looked at. Given that catalytic converters became law in 1992 in UK your really referring to 1980s engines. Given the choice of a 1980s engine and one of the modern petrol engines I know where my choice would lie on performance, economy and quietness.
 
Nov 16, 2015
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Getting back to your towbar, the Witter detachable I had on my Vectra had the round tapering attachment as would have fitted to the photo you supplied.
 
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Nov 6, 2005
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That referred to Adblue stored in its container. That’s why I added the comment about some websites quite 6 months in the cars tank.
It really cannot be a big issue as millions of vehicles in UK, Europe and around the world successfully run their cars without any concerns. Methinks too much thinking isn’t necessarily a good thing.

PS Since it’s two thirds deionised water and one third pee I wonder what it does in very cold temperatures 😱

It freezes - which is why all Adblue systems have heaters.
 
Jul 18, 2017
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An update. On the Jeep forum it is strongly suspected that it is a rebranded Westphalia tow bar as physically it looks the same. Best price I can find for the hitch is £250, but still cheaper than a complete fitting.

We will need it for the Aug Bank holiday provided Mrs B has recovered and is back home where she belongs.
 
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Jul 18, 2017
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Went to tow bar fitters and they could not identify the tow bar although it looks very similar to the Westfalia. Also told me that even if it was a Westfalia they could not source the tow hitch anyway as manufacturer will only supply the complete unit with tow bar.
I have decided on a fixed swan neck as getting down to fix or remove the detachable is getting a bit of a hassle. Fitting tow bar on Friday.
Good news is that our 1997 Corolla flew through the MOT once again with no issues.
 
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