Some of the 18 wheel trucks now use fan clutches that you can engage or disengage electrically.
I would not mind trying one of those.
I tried the electrically engaged Horton on my '96 Diesel Dually, I saw NO gains at all. When engaged it was NOISY. Later I got an FL-60 w/ Cat 3126, 250hp with a viscous thermostatically controlled fan. I went back to stock and sold the Horton. I'd like to try the Mercedes electric setup but don't really want to upgrade my '60's electrical system to deal with it.
