Original equipment manufacturers (OEMs) have been aggressively downsizing engines to meet strict fuel-economy and emissions standards while improving power and torque. Most new engines today use some combination of turbochargers, direct-fuel injection and variable valve timing to make more power than their larger counterparts while delivering improved fuel economy.

Lighter oil viscosities, such as 0W-16, have also emerged to help achieve better fuel economy. Ultra-light viscosities require special attention, so the industry responded by implementing the ILSAC GF-6 and API SP engine oil specifications.

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Vehicle manufacturers know this is an issue and have programmed vehicle software to avoid LSPI-inducing conditions. Doing so, however, limits fuel efficiency. To extract maximum efficiency from their advanced power plants, OEMs have implemented software updates that will increase the risk of LSPI. Engines without the protection of a motor oil formulated to combat LSPI will be at greater risk of severe damage. We are prepared for these future OEM updates.

Proving it can protect turbocharged direct-injected engines, AMSOIL achieved 100 percent protection against LSPI in the engine test required by the GM dexos1® Gen 2 specification.

New Signature Series Oil

The complete AMSOIL motor oil lineup has been upgraded to meet these new challenges.

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Contact your full-service AMSOIL Dealer or AMSOIL Technical Services at 715-399-TECH (8324).