Yep. Thanks. I don't use Greasecar. Both of the E300's have aluminum tanks in the trunk with Hot Fox coolant heated fuel withdrawal units, coolant heated inverted and insulated spin on filters (also in trunk), hose on hose fuel lines to engine bay, 12 Volt fuel heaters just before fuel enters the injection pumps. So, two heat exchangers and then the electric heater. Next time I have the manifold off I'll probably add a fuel temp sensor before the injection pump so I can see exactly what the fuel temperature is before it hits the IP. Can always add another heat exchanger if temp is an issue. Will probably pull the injectors when the car hits 200,000 next year.