Spark plugs

[frogster]

I have 440 turbo and would like to know if anyone has a recomended spark plug to use, at the moment using Bosch super 4s, but when engine warmed up appears to loose a little performance, could this be due to the spark plug running to hot.
Regards
Kev

[B20F]

Bosch plugs don't do well in these renault engines. Try NGK heatrange 7 for a turbo.

[frogster]

Thanks for the advice will change them asap

[Rufe]

In case you are interested -

SET OF 4 GENUINE VOLVO PLUGS:
Pn: 3344899
Retail Price: £11.97 inc vat
Our Price: £8.37 inc vat, plus postage
Postage: £1.62 Royal Mail Recorded Delivery
Availability: Will be dispatched next working day if ordered by 4:30pm

Many thanks

Simon