Today's issue of USA Today had an article about gas quality. An abbreviated version can be found on their site.
Shell, among others, claims to be selling "better gas".
Obviously, they need to justify their higher gas prices (compared to less well-known brands of gas). They claim their gas contains more additives/detergents, more than the minimum mandated by EPA. How big of a difference does it really make for an average engine? I would think that cleanliness of a particular gas station's gas tanks would be more important than a difference betw. the amount of additives.
Anyway, not sure what to think about all this. I buy Shell sometimes, but most of the time their gas (in my area) is much more expensive than others like HESS or Race Track.
Shell, among others, claims to be selling "better gas".
Quote:
Shell, a Top Tier brand, bases its claims on a test by Southwest Research Institute. The laboratory ran an engine for 5,000 hours, using Shell fuel on half the cylinders, an unnamed fuel in the other half. The Shell cylinders didn't have deposits, and the others did, the lab report says.
Obviously, they need to justify their higher gas prices (compared to less well-known brands of gas). They claim their gas contains more additives/detergents, more than the minimum mandated by EPA. How big of a difference does it really make for an average engine? I would think that cleanliness of a particular gas station's gas tanks would be more important than a difference betw. the amount of additives.
Anyway, not sure what to think about all this. I buy Shell sometimes, but most of the time their gas (in my area) is much more expensive than others like HESS or Race Track.