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Tag: dpfs

Perkins 1204F series engines do not need a DPF to meet emissions regulations

Maintenance is necessary on any diesel engine, but the less, the better for the owner. To that end, Perkins has developed a range of four cylinder power plants that do not need a diesel particulate filter (DPF) to meet Tier 4 Final emissions regulations that go into effect in 2014. With their four-cylinder design and […]

February 4, 2013

Perkins T4 Photo Opt

DPFs and DOCs: The new components at the heart of your Tier 4 engine

Plumbed into the exhaust stream of many diesel powered off-road machines you buy today is either a diesel oxidation catalyst (DOC) or a diesel particulate filter (DPF) or both. While there has been much talk and concern over these changes, the reality is that these engines and their emissions control systems are here to stay. […]

August 27, 2012

Ultra-low sulfur diesel must be used in DOCs to prevent the sulfur from “poisoning” the catalysts. Low-ash, API CJ-4 lube oil should be used to prevent ash from building up in the DPF.

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