As you may already know, most new GM vehicles are equipped with capless fuel fill technology, which removes the various inconveniences associated with the gas cap when fueling at the pump. However, this is only the case for gasoline-powered vehicles, and does not apply to diesel-powered vehicles.
Why It Matters
The first GM models to launch capless fuel fill were the Cadillac XTS and 2014 Corvette C7 Stingray. Since then, the feature has propagated to most of GM’s vehicle lineup. But diesel models continue with traditional caps, which are painted green to set them apart from the gasoline caps, which are painted black.
Not giving diesel-powered vehicles the super convenient capless fuel filler almost seems sinful – though it’s an understandable choice given the risk that the owner/operator might forget that their vehicle runs on a different version of dyno juice and fill it up with gasoline, thereby ruining the motor.
GM Authority Take
There’s no denying the convenience of capless fuel fill. The feature will likely make its way to all non-electric GM vehicles in the next few years. But despite the convenience, it still has a few shortcomings to consider.
The common-sense arguments against capless fuel fillers do not apply to GM’s implementation of the technology. Specifically, the system uses a dual-chamber configuration that enables it not to leak fuel while also making siphoning gasoline extremely difficult.
That said, the system does require a special nozzle to fuel the vehicle if you run out of gas and must fuel from a canister. Even so, a specialized nozzle is included with vehicle equipped with a capless fuel system.
So then, the question becomes – should diesel-powered models get the capless fuel filler feature? In other words, do the high levels convenience outweigh the possibilities of the owner/operator fueling the vehicle with the incorrect fuel?
Vote in our poll and sound off in the comments.