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Gunk Free Nation – Live Gunk Free

Gunk is junk, junk that can form on critical engine parts and rob your engine of performance. If you love to drive and want your vehicle to perform at its best, there’s no question, you must say “NO” to gunk!

Gunk Free Nation

According to the Americans for a Gunk-Free Nation (AGFN) by-laws, the definition of gunk is:

Gunk (gŭngk)
- noun

Carbon deposits; power-robbing build-up on intake valves and fuel injectors that can accumulate when low-quality discount gasolines are used:
All Shell gasolines stop gunk from building-up on critical engine parts.
Dirty, crusty accumulated residue:
He swore to defeat engine gunk, but first he cleaned the gunk built-up between his toes.
Any substance that impedes normal and healthy function:
With gunk out of her life, everything ran better – making more time for the important things!

How Can It Be Prevented?
AGFN is not alone in the battle against gunk! Vehicle manufacturers are against gunk, too.

Audi, BMW, General Motors, Honda, Toyota and Volkswagen have all endorsed the TOP TIER Detergent Gasoline standard - opens in new window. Gasolines that meet these stringent requirements might be considered champions in the war on gunk because they work hard to keep carbon deposits from building up in your engine. Shell Regular, Plus and Shell V-Power® gasolines have met the TOP TIER Detergent Gasoline Standard since 2004.

Harmful gunk can be thwarted by choosing gasolines designed with a high level of cleaning agents, which prevent gunky build-up for optimal performance. Top automakers agree, a clean engine:

performs better
has better fuel efficiency
produces less emissions

Sam Memmolo, our technical expert on gunk, also known as Dr. FuelGood™, says, “If you want your car to feel good, you must practice regular vehicle maintenance and always fuel well!”

Watch a video and learn more about the difference between gasolines.