Richard, I did nothing other than pull up to the blue bowser at Shell and fill the tank up with Optimax. It took a couple of tankfuls to clean out and that was it. The only thing to be mindful is that other than increaseing octane, Lead was added as a lubricant. This is usually not a problem for Nissan engines as the Japs had unleaded from the mid-70's. Potentially, the cylinder head will require harder seals for the valve stems or do what I do and that is add some upper cylinder lubricant every couple of months. optimax promotes a number of additives (eg. cleaning agent) but I am not sure whether upper cylinder lubricant is part of it or not. Yoyu could always run some leaded through the system every now and again too. Hope that helps. Cheers --- "Richard Webb" <[EMAIL PROTECTED]> > wrote: >What do you have to do to run optimax? I run Leaded at the moment. Do they >have a lead supplement? or can you just swap straight over to optimax! >Thaught it would be a good idea now petrol is down in the 80's = ) > >rich > >----- Original Message ----- >From: "Michael Foreshew" <[EMAIL PROTECTED]> >To: <[EMAIL PROTECTED]> >Sent: Friday, January 05, 2001 9:55 AM >Subject: Re: LRP > > >> Ken, >> >> Had a similar story with my rally car. It is an L18 and has not been >modified other than carbs (SU's), extractors and elec. dizzy. I found mine >would run really crap until I revved the rings off it and then would be OK. >> >> I have been running Optimax for the 4-5 months and the thing is so much >happier. Idles better and non pinging, hesitation, whatever. Part throttle >response is good. The only problem was I had to replace fuel filter (twice) >as the Optimax has a cleaning agent which removed all the crap from the fuel >lines and tank. >> >> --- "Ken Abraham" <[EMAIL PROTECTED]> >> > wrote: >> > >> > >> > >> ><DIV><FONT size=2>List Members,</FONT></DIV> >> ><DIV><FONT size=2>I have discovered the reason for my rough running >> >L20.</FONT></DIV> >> ><DIV><FONT size=2>Lead Replacement Petrol.</FONT></DIV> >> ><DIV><FONT size=2>On part throttle openings when the vacuum advance is >working >> >it runs poorly, but when you WOT it the vacuum advance ceases >to advance >> >and the engine 'comes alive'.</FONT></DIV> >> ><DIV><FONT size=2>Strangely, it doesn't 'ping' it just >misfires.</FONT></DIV> >> ><DIV><FONT size=2>Modified engines should probably not drink LRP >even for >> >commuting.</FONT></DIV> >> ><DIV><FONT size=2>What are your experiences?</FONT></DIV> >> ><DIV><FONT size=2>Regards,</FONT></DIV> >> ><DIV><FONT size=2>Nick</FONT></DIV> >> ><DIV><FONT size=2> </FONT></DIV> >> > >> >> _____________________________________________________________ >> Get Your free Ozdat Email Account >> ---> http://www.ozdat.com >> >> > _____________________________________________________________ Get Your free Ozdat Email Account ---> http://www.ozdat.com --membersozdat------------------------------------------------------- OZDAT Mailing List Please Note:- Send (un)subscribe requests to [EMAIL PROTECTED] Send submissions to [EMAIL PROTECTED] No unauthorised redistribution of this email http://www.ozdat.com/ozdatonline/index.htm http://www.ozdat.com/ozdatonline/listindex.html http://www.mail-archive.com/[email protected]/ ---------------------------------------------------------------------
