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International Automotive Technicians Network
Re: 87 Ferrari Mondial 3.2 4v
Posted to Technical Discussion Forum on 6/14/2014

The "W" SAE viscosity rating is based on dynamic cranking and pumping tests at sub-zero temperatures and a minimum kinematic viscosity at 100C/212F. There is generally no disadvantage in substituting a 0W or 5W for a 10W.

The "non-W" SAE viscosity rating is ... Login to read more.

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