Ive got a g plate 90 spec s2 that is an oct 89 car with all the usual standard 90 spec bits on rear interior light, wiper delay, computer and so on. does anyone have an idea what tank would be in mine? as im looking at changing it. if i have an earlier tank in the car can i fit the later one (pipes and plugs the same) as i have a tank and sender out of a 91 s2? any help would be great cheers