Power on the 6v92 , long grades playing tricks on me.

[Melbo]

I have my GPS set to keep me informed of the elevation.  When I notice what seems like a sluggish response that is the first thing I check.  Yes I watch the temp and pyro but checking the elevation readings to see if they are changing keeps me happy to know things are normal at the back of the bus.

HTH

Melbo

[Scott & Heather]

Really?! I've always filled my fuel filters that way on both buses over the past 7 years. You guys make this way too complicated.


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[Branderson]

So what got me thinking about this was my experience today.

We're coming back from the Dells of Wisconsin going on I94 towards MSP, we started going up a grade but at some point I thought we leveled off or where actauly going down hill but in fact we were still on an uphill grade. I feared the worst as I had my pedal to the metal as I felt our speed decreasing down to almost 40mph.   Then I recalled we hit something similar on the way there.

I was pulling our Chrysler town and country (4200lbs) as well.

Questions :

1) should I be worried at all?
2) would an older fuel filter(s) cause loss of power?
3) would air filter be an issue?
4) is this all just normal and I need to deal with it?

We managed a tick over 6 mpg over 523 miles pulling the t&c and trying to keep up with traffic hitting 70 when we could .  I'm running 100-110 psi on my tires.  Temp never gets over 185f , it was in the 70s ambient air temp.


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I wrote this in the other thread talking about hills but you and I have the same engine.  I keep it in 3 when around town and shift to D if I ever go over 52mph whether it's around town or when getting to speed on the highway.  When I'm on the highway and I hit a hill, I will go to 3 when going under 52mph and if the hill is long or steep enough, if I go under 40mph, I shift to 2.  I learned this from my uncle who sold me the bus after having it a decade +.  He says these engines like to run at higher rpms and also to keep the higher idle switch on. 

Typically if you lug the engine, you will see black smoke.  I wouldn't be worried and I think it's normal especially for our type of engine but I'm glad to see I'm not the only one that is a slow poke up hills. 

I'm def no mechanic and I can't answer any of the filter questions.  All I know is if there is gas to the top of the fuel filter, it's past the time to get it changed.