Will your 1972 Oldsmobile 442 run on ethanol?

A 1972 Oldsmobile 442's ability to run on ethanol depends entirely on the specific components of its fuel system. While it's *possible* it could run on a low-percentage ethanol blend (like E10, which is 10% ethanol), it's highly unlikely it would tolerate higher concentrations (like E85, which is 85% ethanol) without significant modifications.

Here's why:

* Older fuel system materials: Components like rubber fuel lines, gaskets, and carburetor parts in a 1972 car are not designed to withstand the corrosive properties of ethanol. Ethanol can degrade these materials, leading to leaks and malfunctions.

* Carburetor compatibility: The carburetor on a 1972 442 isn't designed for ethanol. The fuel mixture and atomization might be significantly affected, resulting in poor performance, rough running, or even engine damage.

* Lack of ethanol-resistant seals: Seals throughout the fuel system are prone to failure with exposure to ethanol.

In short, while a small amount of ethanol might not cause immediate problems, using anything beyond a very low blend (if even that) in a 1972 Oldsmobile 442 is risky and could lead to expensive repairs. Sticking to regular unleaded gasoline is strongly recommended.