Diesel exhaust fluid, or DEF, ... You're unlikely to run out of DEF if you pay attention to the warning light on the dashboard, which will alert you when the tank is getting low.

Although the vehicle’s DEF warning light may illuminate when DEF is frozen, most vehicles are programed to operate normally while the DEF thaws. Freezing and thawing will not harm the fluid itself.

Diesel exhaust fluid is an automotive-grade combination of urea and deionized water, which you inject into the exhaust stream of a diesel engine to help turn nitrous oxide into water and nitrogen.

We all make mistakes, but rarely do they have the potential to cost us upwards of $15,000. That’s the kind of error one owner of a 2023 GMC Sierra 1500 with the 3.0-liter Duramax Turbo Diesel ...

But one of the secrets to mitigating their emissions is the usage of diesel exhaust fluid (DEF), also known as AdBlue. The DEF injector on a 2015 Volkswagen Jetta TDI. Chris Rosales ...

Here’s What GM Recommends If Diesel Exhaust Fluid Was Added To The Fuel System . By Sam McEachern. August 1, 2022 8:27 am . Facebook Twitter LinkedIn Pinterest Email Print. 23 ...

For most diesel-powered engines, DEF is vital so the vehicle performs at its best. Here's what it is exactly and what the acronym stands for.

GM has issued a service bulletin for a DEF sensor problem fix for the 2020 to 2024 GMC Sierra 1500, GMC Sierra HD, and GMC Yukon involving module recalibration. News Podcast ...

Diesel Exhaust Fluid (DEF) is a crucial component in modern diesel vehicles, introduced to comply with US Environmental Protection Agency (EPA) regulations that began in 2010. It's a solution made ...

HOLLY, Mich., June 03, 2025 (GLOBE NEWSWIRE) -- Rislone is rolling out a super-concentrated version of its groundbreaking Diesel DEF Treatment that stabilizes and improves diesel exhaust fluid (DEF).