Spark plugs for a Vectra?

Can you explain the difference between these Bosch spark plugs, FLR8LDCU+, FLR8LDCU+9,
FGR8KQE0 and FR91X. I have a Vectra C 2005 with a 3.2 V6 engine. Are all these plugs suitable? One of them has a silver centre electrode I think its FR91X, is that better for increased performance acceleration than the others that have nickel yttrium, some have 4 ground electrodes.

Asked on 12 October 2015 by Den1953

Answered by Alan Ross
The plug recommended for your vehicle is the FGR8KQEO.
Tags: spark plugs
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