I've seen diesel for as low as $1.79/gal in the Houston area. Still not as low as the lowest price I've seen for 87 octane gasoline ($1.49/gal). I haven't seen it that low in years!

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'81 MB 300SD, '82 MB 300D Turbo (sold/RIP), '04 Lincoln Town Car Ultimate

Sooner or later every car falls apart, ours does it later!
-German Narrator in a MB Promotion Film about the then brand new W123.