Government agencies and car manufacturers have worked to reduce the emissions and harmful gases in our air over the last few decades. Automakers downsized car engines and pushed EVs, while the ...

We’re just now beginning to accept that we have to do things differently from what we have always done in order to maintain our aftertreatment systems. We’ve had 14 years to figure it out, yet diesel ...

Chevron says its new heavy-duty diesel engine oil is so effective at reducing DPF soot that exhaust systems could once again become hands-off maintenance items for some long-haul fleets. Hailing it as ...