So I was perusing the Havoline website and looked at the product sheet for their conventional oils. The description for the 5w-20/30 says that they're syn-blends. Is this a mistake or are they really blends?
Havoline PDS
Quote:
SAE 5W-20 provides optimum fuel economy and
durability performance. This synthetic blend engine oil,
carrying the API Resource Conserving designation, is
suitable for use in domestic and import passenger cars,
trucks and SUVs specifying this viscosity grade.
SAE 5w30 is recommended by the majority of later
model domestic and import passenger cars, trucks and
SUVs under a wide variety of weather conditions. This
synthetic blend engine oil is also suitable for use at low
temperatures involving cold starting, and for
exceptional fuel economy.
Havoline PDS
Quote:
SAE 5W-20 provides optimum fuel economy and
durability performance. This synthetic blend engine oil,
carrying the API Resource Conserving designation, is
suitable for use in domestic and import passenger cars,
trucks and SUVs specifying this viscosity grade.
SAE 5w30 is recommended by the majority of later
model domestic and import passenger cars, trucks and
SUVs under a wide variety of weather conditions. This
synthetic blend engine oil is also suitable for use at low
temperatures involving cold starting, and for
exceptional fuel economy.