An engine oil sample is a lot like a blood sample in that it can show details and warning signs of maintenance problems long before they become catastrophic, but many fleets don’t go through the ...

CCJ's 10 44 is brought to you by Chevron Delo, heavy duty diesel engine oil. Now there's even more reasons to choose Delo. An oil sample is only as good as the method used to pull it. You're watching ...

When you take your vehicle in for an oil change — or change you oil yourself if you're so inclined — you probably don't give much thought to what's in the fluid being drained. It might not occur to ...