how can i fix my oil filter vauxhall vectra 2.5 v6 sri?

Hi,
use a strap wrench to tighten it. If your strap wrench is the chain type, wrap a rag around first to prevent damage. Don't forget, it doesn't need to be "gorillard", just nipped, and a bit for luck! It has a rubber sealing face.
Cheers now

Ken Chapman
May 2007