Where is it located on our LC250? That will tell you everything you need to know. My research tells me it is above the fuel tank. Therefore, as long as you don't stuff it up the neck, NO PROBLEM. It's not like its a sealed fuel pump that drives the fuel in under pressure and can push fuel UP. Gravity comes to mind here. I am not promoting stuffing car to overflow. I am simply saying many pumps, especially with a high fill rate, shut off quite early. Continuing to fill at a moderate rate is not stuffing the car. When you get to know your vehicle, you usually use a sufficient slow rate till it clicks again. My RR, was within a few tenths. My Stelvio is 1.5 gallon every time. Neither are full to overflow. My baffled tank Evora took forever to top up and I never did fill it to the brim. But it easily took an extra gallon. I know I know. EOD you make it sound like the canister is much lower and more easily filled with fluid than current design usually allows. That canister was at neck height in my Evora, for example. Please show me the data saying this is a recurrent problem. Maybe offroading at a 30 degree incline is FAR more likely to cause this issue...maybe...I don't know that....but gravity would suggest this esp if canister is in front of tank and you are going downhill for example........so if not stuffing your tank makes the most sense, it would be if offroading and on varied steep terrain because gravity always wins.
So your advice carries no validity sir. No more than mine. It seems the most common cause of failure is getting plugged over time along with cracks and contamination. Seems overfilling gets mentioned, but little is done to prove this.
