[BwanaNdege]

I could not find Diesel fuel prices for 1958. However, gas averaged 30.4 cents/gallon in 1958 dollars.
http://www.eia.gov/totalenergy/data/annual/showtext.cfm?t=ptb0524

Plug that 30.4 cents into an inflation calculator http://www.usinflationcalculator.com/ and that was the equivalent of paying $2.39 today.

Here are the prices on a few other things from 1958.

http://www.fiftiesweb.com/pop/prices-1958.htm

[Paladin2]

I wuz buying gas in CA for under $0.30 in 1973.

In HS we used to be able to round up pocket change for 3 or 4 guys and buy an evening's crusin' gas load.

[1rudeboy]

Please reread my comment #10. I am not talking about inflation.