I'm running a dual-fuel setup in an '81 Merdedes 240D. The temperature on the thermostat is 160-180 running diesel. When I switch to WMO, the temperature jumps to somewhere between 190-200. It always goes up about 20 deg. and it doesn't take its time doing it. You can almost watch it happen. If I switch back to diesel (well, actually 50/50), the temp drops right back down - I mean like you put a garden hose on the radiator.
I am running 50/50 (D2/WMO) in the stock tank. I have a 20 gallon boat fuel tank in the trunk to hold the WMO (100%). I have a lift pump in the trunk and a heat exchanger under the hood. I am using one of those $50.00 eBay eletronic transfer valves (a beautiful thing). The oil I am mainly running came from a buddy who has an elevator shop with work trucks. This is oil-change stuff from the past three years. I can't be sure but, knowing him, there is probably a large amount of synthetic in this mix.
Has anyone else had increased running temps on WMO? Does synthetic cause issues like this?
I am running 50/50 (D2/WMO) in the stock tank. I have a 20 gallon boat fuel tank in the trunk to hold the WMO (100%). I have a lift pump in the trunk and a heat exchanger under the hood. I am using one of those $50.00 eBay eletronic transfer valves (a beautiful thing). The oil I am mainly running came from a buddy who has an elevator shop with work trucks. This is oil-change stuff from the past three years. I can't be sure but, knowing him, there is probably a large amount of synthetic in this mix.
Has anyone else had increased running temps on WMO? Does synthetic cause issues like this?