aRSekicker

hi guys, im going 2 do an oil change prob use halfords oil filter ?
any 1 know what part number 4 filter is ? will i find out info of chassis / vin number or do i require engine number as this is not known !
i have a 1993 wrx import saloon
im also doing a coolant change will any brand do or should i choose a specific brand ? plus how many litres do i need ?
any info would be appreciated guys
thanks mick