Hello, I changed spark plugs yesterday at my T5. Current km stand 101800km. 101800km on LPG. The Zündis were working these 101800km. Normally the change interval is 120tkm. But wanted to change already now. Original Volvo candles were installed. There were some with FoMo Co imprints Supposedly you can say something about the load etc of the engine on the basis of the candle picture. I can’t do it so I thought I’d upload the photos here. The candles were changed from left to right.