In the owners manual for my June 1994 corolla 1.3 gli with the 4E-FE engine it says that the spark plugs should be NGK BKR'5'EYA and the plug gap 0.8mm.
My local suppliers in his big book of plugs bible it says it should be a NGK BKR'6'EYA. He says my owners manual is 15 years old and things get changed. He says it's to do with the rate the plugs warm up. I'm not sure now which one to go for? Thanks for advice.