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Old 11-05-2016, 05:10 PM   #4 (permalink)
Master EcoModder
Ecky's Avatar
Join Date: Dec 2011
Location: New Zealand
Posts: 4,808

ND Miata - '15 Mazda MX-5 Special Package
90 day: 39.26 mpg (US)

Work Vehicle - '17 Toyota RAV4
90 day: 31.42 mpg (US)
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For what it's worth, I've only ever put 0w20 in my engine and it hasn't burned a drop of oil in the 60,000 miles I've owned it. Every 7-10,000 miles 2.6 quarts come out, and 2.6 quarts go back in. I also have dealer records to suggest that the previous owner only ever had the oil changed at the dealer, and that they used Honda-approved 0w20 or equivalent syntheic oil. Using thicker oil is not recommended by Honda, especially in colder weather, because the tight clearances in the bearings would prevent proper lubrication at typical operating temperatures, much less before the engine is fully warmed up. The 0w20 we can get in the US is a lot thicker than the oil the Japanese have access to and run in their engines.
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