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Old 08-28-2019, 12:08 PM   #37 (permalink)
teoman
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Join Date: Jan 2017
Location: Istanbul
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A3 - '12 Audi A3
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I missed the opportunity to purchase the lpg setup

I also have a new car now, and I am thinking about methane injection. My route is 30 km * 2 (40 mi round trip) which usually involves traffic.

Although i have most of the equipment, i do not want to mess around with CNG.

I am thinking low pressure natural gas, pumped with a small diaphram air pump.

Methane stored in an air mattress with roughly 200*100*20 cm dimensions. That would be 0.4 m^3 of volume or 0.4 liter diesel equivalent of volume. 40 cents worth of fuel.

Car burns approx 5l/100km on average on this trip. So 3 liters.

Seems I can get %10 substitution from 1 airmattress.
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