Date: Fri, 27 Apr 2001 04:40:16 GMT From: Ken Washington <kenwashinopsamhlink.net> Subject: Re: Bosch 4-Plus Plugs: Good Idea or Bad?
Mark, I have been running the Bosch Platinum +4 plugs in my 87 9000S for over 30,000 miles. I have loved them, since the day I put them in. You don't have to gap them. I just recommend checking the plugs for tightness after the first 10,000 miles. Mine had loosened a bit, and I just retightened. Just be sure to use anti-seize on the plugs. Is your 86 900 a 16V? If so, the part number for the non-DI equipped is 4418. I noticed stronger pull through the middle gears and a slight bump up in my gas mileage. Of course, that will disappear, if you enjoy the acceleration too much. Ken Washington 87 9000S 87 900S 83 900T