thanks for the advice. Does anyone know whether the new VWs run cats, and if so, how they keep them clean? anton
>Where did you install the converter? It needs high temperature to >function.An air injector may help,in the exhaust manifold.As close to the >exhaust ports as possible.A clogged converter will put out a sulpher-rotten >egg smell even with gasoline.Install a converter as close to the exhaust >manifold as you can reasonably get it. Give your bio a boost with 5% >methanol, ethanol,or kero. Work up slowly to a 10% mix only if needed and >so on.You are not burning enough of the carbons. Your engine "may" be >running to cool.Try the next higher temp thermostat. Do one thing at a >time,chart the results. Start with the least expensive option,try a hotter >thermostat first. Then try kero,it should mix better than the alcohols. stephen Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html To unsubscribe, send an email to: [EMAIL PROTECTED]