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.

Chevron has begun the consolidation of its gas engine oils under the Chevron HDAX® brand. The new line will include the best products from Chevron’s g ...

Even though no engine makers have yet approved FA-4 oils for older engines, Chevron says in its own testing, this oil has performed well in EPA 2010 and EPA 2013 engines. Delo 400 XSP 5W-30 is a ...