Menu toggle

Spark Plugs

pendrifter

New member
Hi,
Has anyone experience using platinum or iridium plugs?
Had my '86 944 checked out, nothing to adjust, and still getting approx 300 miles to the tank. Been suggested that different plugs might make some difference.
Also suggested using better petrol [Shell V perhaps?] in stead of the usual supermarket fuel?
Guidance please.

 
I fitted NGK iridium plugs, runs fine but not noticeably better than before - they just last longer. The old copper ones looked like a textbook picture (the "correct" one!) when I took them out - I have never seen such clean and perfectly-coloured plugs, never mind after 30k miles in a 150k miles engine. I also use Shell V-Power; ordinary 95 octane works OK, but the system is always backing off the power (retards the ignition) to prevent detonation. She runs better on 99-octane V-Power and does about 10% more mpg when using it.
 
I run Denso Iridium plugs and I think they are great. Could feel a difference, not massive but worth the premium for the set over standard plugs. [link=http://www.youtube.com/watch?v=wbuGpJWNX1M]This video highlights the difference[/link]. Our large capacity cylinders I believe can benefit from the extra spark an iridium plug can provide. The only way you will find out is to try them.. Edd
 

Posts made and opinions expressed are those of the individual forum members

Use of the Forum is subject to the Terms and Conditions

Disclaimer

The opinions expressed on this site are not necessarily those of the Club, who shall have no liability in respect of them or the accuracy of the content. The Club assumes no responsibility for any effects arising from errors or omissions.

Porsche Club Great Britain gives no warranties, guarantees or assurances and makes no representations or recommendations regarding any goods or services advertised on this site. It is the responsibility of visitors to satisfy themselves that goods and/or services supplied by any advertiser are bona fide and in no instance can the Porsche Club Great Britain be held responsible.

When responding to advertisements please ensure that you satisfy yourself of any applicable call charges on numbers not prefixed by usual "landline" STD Codes. Information can be obtained from the operator or the white pages. Before giving out ANY information regarding cars, or any other items for sale, please satisfy yourself that any potential purchaser is bona fide.

Directors of the Board of Porsche Club GB, Club Office Staff, Register Secretaries and Regional Organisers are often requested by Club members to provide information on matters connected with their cars and other matters referred to in the Club Rules. Such information, advice and assistance provided by such persons is given in good faith and is based on the personal experience and knowledge of the individual concerned.

Neither Porsche Club GB, nor any of the aforementioned, shall be under any liability in respect of any such information, advice or assistance given to members. Members are advised to consult qualified specialists for information, advice and assistance on matters connected with their cars at all times.

Back
Top