I have marghallah 1998 and have been running it on CNG from year 2000. She is quite well. Now i experienced a very new problem.
The patrol in the patrol tank became just dirty with a very bad smell. Also it became sticky to such extent that it jammed the fuel pump in patrol tank. I got my tank cleaned with replacement of fuel pump.
SAme thing happened again within 30 to 40 days again making patrol dirty and spoiling fuel pump.
I have been told one theory by the car mechanic that your CNG is mixing in patrol. However they have no solution. My CNG mechanic denies this theory and suggests to have new patrol tank.
Does any one ezperienced the same? Please give possible solutions if any.