i have a 1991 Saab 900i 16V 2.0, i noticed some shuddering from her when driving on the motorway last night when deaccelerating between 70 and 50. she is due a service and i thought i'd start by changing the spark plugs but am getting conflicting info from websites and garages:
do i need "bcp5evx" plugs or "bcp6es" plugs - i know the main difference is resistance plus the 5evx is over 4 times the price of 6es!! can someone please tell me if i can or can't buy the cheaper 6es - will it affect perforamce or maybe i should look at a completely different plug all together, maybe the 5es?
i know i need a 10mm socket will something like this do to change them?
http://cgi.ebay.co.uk/Toolmaster-10-Piece-Spark-Plug-Socket-Set_W0QQitemZ280315346014QQcmdZViewItemQQptZUK_Hand_Tools_Equipment?hash=item280315346014&_trksid=p3286.c0.m14&_trkparms=72%3A1701%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318
many thanks in advance
do i need "bcp5evx" plugs or "bcp6es" plugs - i know the main difference is resistance plus the 5evx is over 4 times the price of 6es!! can someone please tell me if i can or can't buy the cheaper 6es - will it affect perforamce or maybe i should look at a completely different plug all together, maybe the 5es?
i know i need a 10mm socket will something like this do to change them?
http://cgi.ebay.co.uk/Toolmaster-10-Piece-Spark-Plug-Socket-Set_W0QQitemZ280315346014QQcmdZViewItemQQptZUK_Hand_Tools_Equipment?hash=item280315346014&_trksid=p3286.c0.m14&_trkparms=72%3A1701%7C66%3A2%7C65%3A12%7C39%3A1%7C240%3A1318
many thanks in advance