what is the diff between royal purple - Maintenance and Repair Forum

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what is the diff between royal purple
Tuesday, September 08, 2009 8:59 PM
hey guys im running a turbo and i think im going to use royal purple for my oil.. but i am confused with the 5w-20 and 5w-30.. what is the difference and what one is better for turbocharged motors. or if there is anything else you guys would recommend. any help is great

Re: what is the diff between royal purple
Tuesday, September 08, 2009 9:26 PM
Quote:

Multi-weight oils (such as 10W-30) are a new invention made possible by adding polymers to oil. The polymers allow the oil to have different weights at different temperatures. The first number indicates the viscosity of the oil at a cold temperature, while the second number indicates the viscosity at operating temperature.


http://auto.howstuffworks.com/fuel-efficiency/fuel-consumption/question1641.htm



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