Isuzu D max long range fuel tank

Thanks for that a car sales guy told me that they hang down lower

Every thread I have read regarding a long range tank for a D-Max / M-UX, they all read the same as mine does

It takes about 2-300k before the gauge starts to move and when this happens, the distance to empty also starts counting down. I know I can do at least 1,000k or 550k while towing so it is not really a problem once you get used to it.

If you are really pedantic about it, you can use a Scangauge11 to give you more accurate figures but to me it is not worth the hassle.

Fitting and using a scanguage is not a hassle and I find it well worth it.

Not only do you get an accurate distance to empty figure but other vales are displayed that you wouldn't know without it.

I have mine set to show water temp as it is much more accurate than the needle on the dash.

Also, if you ever have your car go into limp mode you can see what the problem is and try to deal with it or at least reset it and see if it re-occurs. This is exactly what your mechanic will do when you finally crawl into the next major town having been way down on power for the last 300kms.

It isn't hard for a manufacturer to make a tank which holds the sender in much the same position as OE tank does, and it of course, it then behaves the same as the OE setup once it lowers from above the senders upper reach.
As long as you are happy with NO action for a few hundred KMs and then the gauge begin to drop, then no problem. Most folk just accept it as normal. Tank makers aim at the least trouble and so the large upper non registering of fuel is going to happen.
They could set the arm to read from near the tank top and have it then gradually indicate, as full at/near the 130L, and go down to near empty with a reserve amount as OE, but don't bother.

As long as you know what it all does then, OK. A scan gauge is a good thing for resetting as above, I have one for the function info it provides, but would find it a pain to have to reset it after each fill, so don't use it for fuel monitoring. I can tell from the gauge how much fuel is still in the tank, usually to within a litre.