what spark plugs should i use on my service?

FatLadZ · Oct 4th, 2009, 23:37

Hi guys as a newly converted lpg owner of a volvo c70 T5 im needing to know what plugs i should put in my 1999 vvt engined T5?
The service light came on today and i am going to do the service midweek when my genuine oil filter and air filter comes.
the plugs in there at present are NGK PFR6B if i remember correctly.

capt jack · Oct 5th, 2009, 12:57

Plugs are a big issue with LPG.

Ones to avoid include any of the multipoint style - LPG does not like this in my experience.

My LPG conversion has now done 150,000 miles, and in that time I've tried many different plugs.

Bosch superplus I've found to be consistently good, NGK, Champion and Volvo plugs for me have quickly deteriorated.

At the moment for the first time I'm running on Denso plugs.

In broad terms I'd say get bog standard single point plugs of whatever make, get them from Andrew Page Motor Factors (or similar) at around £1.50 each, and expect them to last bewteen 7k and 10k miles. Set the gap perhaps 0.1mm less than the book.

You'll know when the plugs get tired because you'll start getting an intermittent misfire. At £7.50 a set it isn't worth bothering to clean and regap them. LPG is heavy on plugs, and soon lets you know once things start to deteriorate. I have also tried a cooler grade of plug, but have since reverted back to the specified grade.

Cheers

Jack

classicswede · Oct 5th, 2009, 23:24

Ngk bkr6es

FatLadZ · Oct 6th, 2009, 00:16

bkr6es ordered this afternoon

cheers for the replies

Johnny8718 · Oct 11th, 2009, 17:22

Check the BRC conversion - great without a towbar thread. If anything proves classicswede is the expert - this will!

John.

Oct 4th, 2009, 23:37	#1
FatLadZ Member Last Online: Oct 2nd, 2020 21:16 Join Date: Dec 2002 Location: Retford , Notts	what spark plugs should i use on my service? Hi guys as a newly converted lpg owner of a volvo c70 T5 im needing to know what plugs i should put in my 1999 vvt engined T5? The service light came on today and i am going to do the service midweek when my genuine oil filter and air filter comes. the plugs in there at present are NGK PFR6B if i remember correctly. __________________ Saffron C70 T5 GT with a Marrelli LPG Conversion Calibra Turbo 4x4 Ford Focus St225 2.5 T5 Dreamscience tuned

Oct 5th, 2009, 23:24	#3
classicswede Trader Volvo in my veins Last Online: Apr 26th, 2024 23:53 Join Date: Dec 2004 Location: Anglesey	Ngk bkr6es __________________ http://www.classicswede.org www.classicswede.co.uk

Oct 6th, 2009, 00:16	#4
FatLadZ Member Last Online: Oct 2nd, 2020 21:16 Join Date: Dec 2002 Location: Retford , Notts	bkr6es ordered this afternoon cheers for the replies __________________ Saffron C70 T5 GT with a Marrelli LPG Conversion Calibra Turbo 4x4 Ford Focus St225 2.5 T5 Dreamscience tuned

Oct 11th, 2009, 17:22	#5
Johnny8718 V50 2.0D & C70 Collection Last Online: Oct 17th, 2014 21:00 Join Date: Feb 2008 Location: Wigan	Check the BRC conversion - great without a towbar thread. If anything proves classicswede is the expert - this will! John. __________________

Oct 5th, 2009, 12:57	#2
capt jack VOC Member Last Online: Apr 20th, 2024 18:56 Join Date: Jun 2006 Location: Selby, North Yorkshire	Plugs are a big issue with LPG. Ones to avoid include any of the multipoint style - LPG does not like this in my experience. My LPG conversion has now done 150,000 miles, and in that time I've tried many different plugs. Bosch superplus I've found to be consistently good, NGK, Champion and Volvo plugs for me have quickly deteriorated. At the moment for the first time I'm running on Denso plugs. In broad terms I'd say get bog standard single point plugs of whatever make, get them from Andrew Page Motor Factors (or similar) at around £1.50 each, and expect them to last bewteen 7k and 10k miles. Set the gap perhaps 0.1mm less than the book. You'll know when the plugs get tired because you'll start getting an intermittent misfire. At £7.50 a set it isn't worth bothering to clean and regap them. LPG is heavy on plugs, and soon lets you know once things start to deteriorate. I have also tried a cooler grade of plug, but have since reverted back to the specified grade. Cheers Jack

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