Allison Economy Mode in Engines Posted March 28, 2010 · Report reply Have 2006 HR Neptune with an Allison 5 spd, with a Cummins ISB 300. Transmission manual recommends not using in economy mode in city driving or mountains. What is your opinion?
Allison Economy Mode
in Engines
Posted · Report reply
Have 2006 HR Neptune with an Allison 5 spd, with a Cummins ISB 300. Transmission manual recommends not using in economy mode in city driving or mountains. What is your opinion?