Thanx for all the replies, The same customer has two, 2 year old Nissan's, and two older Toyota's, with impco cobra regulators, and they run fine on the same propane fuel?
The Toyota dealer says 6 to 12 months is normal life span for the Aisian regulators. I drain the Aisian regulators, once a month, about 150 hrs.
Also when I tear the bad regulator apart, I find oily tar thru out the inside of the regulator, and the rubber valves are either badly groved or broken up.
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