Compressed natural gas may cost the equivalent of $1.89 per gallon of gasoline, but retrofitting your GMC Sierra or Chevrolet Silverado will cost you $11,000 – and GM still think it will save you money.
According to GM, “…Customers could save $5,000 to $10,000 over a three-year period, depending on their driving habits.” How GM came to this number is a bit of a mystery, and we’re doing some digging to try and figure it out – because it’s a conversion, there is no EPA rating on it and data is difficult to find.
What we did notice was this little tidbit
“Businesses are looking for ways to control their costs while reducing vehicle emissions and becoming less dependent on fluctuating gas prices. The low cost of ownership makes these vehicles a realistic solution,”
$11,000 is a lot of cash for a business to tie up in one truck. In the absence of any data on how many miles it would take to break even (as well as the gas price number used to come up with it), it appears that GM is hoping to sway buyers with the prospect of unstable or rising fuel prices in the future. Emissions are almost certainly a secondary concern. It’s a wonder that GM didn’t promote the fact that CNG can legitimately claim to be a domestically sourced form of clean energy, seeing as they (barely) did back in March.
We contacted GM to try and get more information on the CNG conversion, and more specifically, how they came to their savings figures. Please leave all accusations of anti-GM bias, skulduggery and wrongdoing in the comments section.
EDIT: General Motors says that they calculated the savings based on a truck driving 24,000 miles a year, with gas prices at $4 per gallon and a CNG gallon equivalent of $2. GM’s Mike Jones, Product Manager for Fleet and Commercial Operations, thinks that there will continue to be “…a pretty significant price separation…” between gasoline and CNG.