Only cars with foam fitted or suffered foam failure engine size 1800cc Rover K approx bhp 140 have you suffered overheating issues / airlock etc. N appollo / laminova fitted N wet sump only Y Type of running :- general road in all weather conditions 365 daya a year - over 60,000 miles in 4 years The following questions are for Foam failure only approx age of foam in months year of foam failure approx milage before failure oil grade type and brand used. coolant type and brand used. did coolant require top up during this period that the foam was fitted. cooling related failures / issues during this period . Y/N any major engine issues / work carried out prior to foam failure. Y/N Note oil was Syner Z every 6,000 miles, new foam every 12,000, coolant required topping up around once a month, but oil never needed topping up between services. Coolant loss was caused by a leaking valve and heater matrix. Both replaced, valve still leaks a little.