[DSK]

Right, so on my C70 T5, doing 1,000 miles a week, I just serviced the C70 for the second, using the Bosch plugs mentioned above.

I had all the plugs to hands at Volvo, the OEM pack from stock, Bosch plugs and NGK.

The Volvo tech said, DO NOT use the NGK but, said you'll find the Bosch ones to be looking good. So the NGK is definitely not a match up to the OEM Volvo but the Bosch plug, the engraved lettering and look was matching the OEM Volvo plugs.

Second set of Bosch plugs in and no issues. The car runs smooth as it ever has done, sustained wide open throttle is perfect, sitting for hours on end around the M25 is glitch free as its trekking up/down the motorways.

BOSCH PLUGS = WIN! I get mine from OPIE OILS for about £32 for a set of 5, and considering I have 4 services a year, that a £120 saving which can be put towards other consumables and parts... right time to invest in a set of those Goodrige stainless hoses!