When I purchased my MINI, some new plugs were passed along in the sale. In the car were NGK's-4 prong cold plugs. What I was given were a set of BOSH Platinum +4's.
When I removed the old plugs today, they were dry, dark brown and black fouled. I am sure one of those JC Whitney 12V DC hand held spark plug sand blaster cleaners would clean it up nicely, but I put the BOSH plugs in anyways.
The MINI fired right up, was a much smoother idle, has more "even" acelleration, and when in higher gears I don't have to down shift as much because the power is there.
Does anyone else use these BOSH Platinum +4's ? And if so How do you like them ?

 

See https://www.northamericanmotoring.co...d.php?t=146678

Same basic topic, thread started today as well.