Nissan Primera P12 - LPG Conversion

Not many have done that. I recall someone on here who converted his last year, but don't know how that is running. You could use the advanced search to find older posts on p12 and lpg.
According to info from Vialle and Prins, the nissan engines after 2002 have valve seat wear problems (as do a lot of other cars) so not recommended. A valve lubrication system like flashlube is necessary, but even then do not always give good results.

Dutch file by vialle, premium means premium warranty so no problems expected. In that column a " nee" means no warranty extension, problems expected.
http://www.vialle.nl/fileadmin/user_upload/Consument_Catalogus_NL.pdf
P11s do fine on lpg by the way.

Hi Wicky,

Thanks for thise, and the tips for the search on the forum, as I admit I have really struggled with the search feature.

I will follow your advice.

Cheers,

Jay

Hi Wicki,

Thanks for those links, unfortunately every time you asked anyone a direct question about the lpg, they didn't answer.

Have you pm'd these people and asked any questions about it?

I contacted UKLPG to get there take on the valve problem, and also ask about my local fitter.

This is the reply:

I left it at that, as i drive a diesel now.
What you got for reply is pretty common.
From my own experience, I owned a 1.3 16V Corolla which I had converted to lpg. After 80 to 100k km the valve seats were gone. Which really meant I would not have gained anything had i gotten a head reconditioning for it. I got rid of it.
It's just not cost-effective then, unless you're prepared to spend a lot of money on new valve seats and then keep it for at least 100k more.

Personally, I don't think I will buy an lpg system again. I'll buy a diesel.
For LPG cars, I would recommend selecting the type of car based on those lists above.
And in this typical case of your p12, that would mean I would personally keep it on petrol.

But in the end, it is all down to your own calculations and preferences.