Montana Owners Club - Keystone Montana 5th Wheel Forum - View Single Post

laverdur · 03-29-2023, 02:30 PM

I had a similar conversation with the service manager at my dealership. He said he recommended only Ford DEF and why would I want to risk damage to a $10K engine. My take, he didn't want to lose the business. There have been a couple times that I was quite a distance from a Ford dealer and needed DEF. I bought it at a truck stop and it worked fine. As others have noted, DEF is manufactured to ISO standards.

03-29-2023, 02:30 PM	#35
laverdur Montana Fan Join Date: Nov 2011 Location: Albany Posts: 407 M.O.C. #11972	I had a similar conversation with the service manager at my dealership. He said he recommended only Ford DEF and why would I want to risk damage to a $10K engine. My take, he didn't want to lose the business. There have been a couple times that I was quite a distance from a Ford dealer and needed DEF. I bought it at a truck stop and it worked fine. As others have noted, DEF is manufactured to ISO standards. __________________ 2012 3150RL. G614 tires. Hardwired surge protector. Level-Up Hydraulic leveling. 2013 F-350 Lariat 6.7 PSD SRW SC LB 4X4 OEM hitch, air self-leveling on rear. 57-gallon replacement fuel tank. DieselSite water separator/fuel filter.