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Old 06-16-2017, 04:51 PM   #29
Rivet Master
Al and Missy's Avatar

2002 30' Classic S/O
Melbourne Beach , Florida
Join Date: Nov 2013
Posts: 3,133
My F-150 had a transmission cooler in front of the radiator. At highway speeds it was fine. Climbing a 8% grade at 30-35 mph in 2nd gear, with bicycles on a front hitch rack disrupting the air flow, not so much. A lot depends on your transmission (mine was 4 speed) and whether or not you have tow/haul (I didn't) but there is no substitute for air flow over the cooler and radiator. I was going to fit an active (thermostatically-controlled fan) cooler to the truck but traded it before I got around to it.

I would think that as long as you are below GCVWR, and can climb the hills at a reasonable speed, there is no need for another cooler.



"You cannot reason someone out of a position they have not been reasoned into"

Al, K5TAN and Missy, N4RGO
2002 Classic 30 Slideout
S/OS #004
2013 Dodge 2500 Laramie 4x4 Megacab Cummins
2001 Safari 25 RB Twin (Gone, but not forgotten)
WBCCI 1322, TAC FL-39, AIR 82265

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Old 06-16-2017, 06:14 PM   #30
Rivet Master
2005 30' Classic
Burlington , Ontario
Join Date: Sep 2008
Posts: 2,743
Agree with what other owners have said - our stock 2008 2500HD has been many times from our home near Toronto to Arizona, California, Florida, with no issues.

I think you'll be fine!

Oh - I tell a lie - we did have a problem with a bad load of fuel once - heed the advice to only buy your diesel fuel from large stations with lots of turnover so that the fuel is fresh - Flying J etc.

I knew that, and we normally did, but one time got caught short in the hills of Pennsylvania and filled up at a seedy little gas station in the middle of nowhere.

About two hours later we had problems - truck could not exceed 20mph, all kinds of dash warning messages to service the fuel filter.

Luckily we limped in to a GM dealer five mies down the road and all was resolved!

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