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US diesel $4.049 per gallonWeek ending Aug 17, 2026 · EIA
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International MaxxForce 13

12.4 litre2008 to 2015DPF (2007)

The engine from Navistar's decision to meet the 2010 nitrogen oxide standard with exhaust gas recirculation alone rather than adopt selective catalytic reduction, as every competitor did. It did not work.

Output

375-475 hp

1450-1700 lb-ft peak torque

Fuel per mile

$0.723

at 5.6 mpg and $4.049 a gallon

Fuel a year

$86,764

over 120,000 miles

In-frame overhaul

$18k-$27k

rough, and shop rates move it

In the exhaust

Massive EGR, no SCR

The diesel particulate filter arrives, and with it regeneration: the truck periodically burns off the soot it has caught. Regens cost fuel and time, and a filter that will not regen is a truck that will not move.

Known issues

EGR coolers, valves, turbochargers and head gaskets, at rates that produced years of litigation and a class action settlement, and that pushed Navistar into adopting SCR after all.

Verdict

The clearest cautionary tale in modern truck buying. Used prices reflect it. If you are offered one cheap, the price is the warning rather than the bargain.