ISOSYN Advanced Technology™

ISOSYN Advanced Technology ISOSYN Advanced Technology
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Your power to go further

Your power to go further

The next generation of
diesel engine oil chemistry

From 100 years of Chevron formulating expertise came Delo 400 with ISOSYN Advanced Technology. Engineered to deliver outstanding wear protection with long service intervals.

Isosyn Adv Char Isosyn Adv Char

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“Chevron products have just been great. I know they're going to perform flawlessly --no matter what, they've always done their job." - Tommy Hoge, Co-Owner, Hoge Motor Co.
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“When I got here in 2003, we were changing oil at 25,000 miles…. Today, with the next generation 5W-30 full synthetic, we’ve got the fleet at 75,000 miles and planning to stretch that to 100,000.”
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Boaty’s reported a 2% improvement in fuel efficiency relative to an SAE 15W-40 oil in their field trial evaluation of Delo 400 ZFA SAE 10W-30