MX5100HST almost 6 hrs in experience.

[motownbrowne]

I've only put 4 hours on my mx4700, but I had a little over half a tank when I got it, used it for four hours, put 4.5 gallons of diesel in, and now I'm back to a little more than half a tank. I know that's not very scientific, also, I'm not using it much over 2k rpm or for any PTO work. I am hoping mine does better without the turbo, though.

 

[DSM123]

If it's anything like the old Mercedes '617' diesels the turbo engine will be much more efficient than the no turbo.

As far as turbo noise... I don't notice it. What I do notice is the HST noise and a very annoying toolbox rattle. I can fix the toolbox and I'm sure I'll get used to the hydro noise eventually.

 

[corl]

DSM123: I bought my Kubota at Hoober's (www.hoober.com) here in Pa and they filled the tires with something that wasn't rimguard or beet juice, but some new substance I had not heard about. I think they subcontract their tire stuff to some big local tire company. I'm sorry I don't remember what the material was called but you could contact my salesman (Mark) and ask him that question. <mfrey@hoober.com> It is something that doesn't have the problems associated with other fluid materials - supposedly. I am sure that Hoober uses it in all their tractor tires, and they sell a lot of tractors. I wasn't concerned at the time since this is what they use.
Sorry not to answer your question better.

I too have the toolbox rattle but just haven't addressed it yet (70+ hrs). My HST seems pretty quiet and I can't tell when the turbo spools up. I always wear ear plugs when operating machinery.

 

[DieselnHooters]

Mine is the ancestor of the MX5100, basically the same machine but no turbo and gear drive and its nowhere near as thirsty as what you guys are describing with your newer MX.
Of course I never need to go above 2000 RPM as I dont mow or clear brush, mostly snow clearing with the FEL and logging or wood trail maintenance. The PTO is only used to power a wood splitter pump.

Its been an all star performer so far, did everything I expected it would do and then some, a 2005 model year with 800 hrs and not a single hiccup, all its ever needed so far are oil and filters, havent replaced anything not even a light bulb or a fuse....heck its still on its original battery.

 

[Bluegill2]

I'm thinking one reason is due to the HST. With the older machines I usually left the throttle close to idle and throttled up using the foot when doing FEL work. With the HST its running at 2K rpm all the time.

I do recall the old Perkins '152' diesel sipping fuel to the point where I'd forget to refill it was so infrequent. This thing guzzles fuel like a gas engine.

Yep, HST drinks fuel! Both our geared Kubotas sip fuel. My mom has a small 23hp HST Massey that burns twice as much as my L3800DT...

But you are having fun, that's what counts! Congrats!

Don't forget counter weight on the 3 pt when using that loader. 1000+lbs for the MX... Very important!

 

[murphy1244]

Newer machines use's more Hydraulics than older machines. My Massey was made to pull a implement not for FEL use. Newer machines have MFWD also.

 

[corl]

I have an F2100 Kubota that I mow with. It runs 2500 rpm all day and at 21 hp won't drain the 6 gallon diesel tank in two 5 hour work days. It is HST and sips fuel. It is 25 years old and works great!

 

[dbaer78]

Fuel consumption is my biggest gripe with my MX. However no way would I ever trade my hst for a non hydraulic shuttle trans. The Kubota doesn't have the low speed grunt my old ford 3600 had but I'll tell you for certain it will out skid it hands down in the woods. I don't miss the old ford a bit.

 

[DSM123]

Well, I filled it up this evening and calculated a better fuel consumption than I had originally though based on what the gauge was indicating. It looks more like 1 gallon/hr. Not too bad for the work I got accomplished. I cleared about 8 acres of dead cedar trees that had died due to a fire two years ago. I have five bus size piles to burn. Plus, mowed maybe 3 acres that hasn't been cut since the fire. Not bad for 5 hrs.
And, maybe 30 minutes of that was the wife driving it around. I really need to keep her away from it otherwise, she'll rack up the hrs.

Thanks Corl, I'll check with them re the ballast.

Dan

 

[xring100]

Wow I'm amazed my M8540 typically uses 0.5 - 0.75 gph if I'm using it for loader work and moving stuff around 1 gph for heavier loader work using tooth bar. 1.25 - 2 gph
7 foot brush hog moving a speeds up to 5 mph
1.5 - 2 gph pulling a 2 bottom plow deep through heavy clay. Same soil that stopped me buddies jd 2040 2wd dead in its tracks when the plow hit 3" deep
I had no idea