Low-viscosity oil field trials pushing fuel economy

| August 31, 2013

Low viscosity oil, however, is in many ways only half of PC-11, says Arcy. Simply, a new category was needed because of the need to increase fuel efficiency and decrease CO2 emissions, but also because of updated engine technology, he says.

The last engine oil category was finalized 10 years ago, Arcy said, and engines have changed a lot since then.

With the new category, though, manufacturers also wanted oils that could handle higher engine temperatures and with improved oxidation ability, along with improvements in preventing oil shearing and oil aeration.

Thinner oil can do all of this, Arcy says, along with the two core — and oft spoken about — functions of decreasing fuel consumption.

  • MercenaryMan

    Low Viscosity does have advantages, it lubricates better and faster at start up, its circulates faster, you can build an engine with tighter clearances and use a thinner oil and not lose wearability but gain durability, many races have found this works and have switched to lower viscosity oils from the 50 weights they used to use. I have several japanese cars that use a 5w20 oil all year round and get nearly 35-43 mpg and the engines last with the highest mileage engine at 245,000 miles and it runs like its brand new….I use a Castrol Synthetic blend and oil changes at 6000 miles and Ive had very good luck with Low viscosity.

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