Just got a used toro workman with a 3 cyl liquid cooled vanguard engine in it. I pulled the plugs out and they are NGK BKR4E. However, pulled the manuals up on toro and it says NGK BPR4ES.
Whats the difference in the plugs? Unless someone has good explanation why the change, i'll probably put the BPR4ES in it.
Whats the difference in the plugs? Unless someone has good explanation why the change, i'll probably put the BPR4ES in it.