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Royal Purple's proprietary additive technologies, such as Synerlec, enable its products to outperform leading synthetic and conventional lubricants
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Max Cycle

Max-Cycle is specifically formulated to significantly improve motorcycle, ATV and snowmobile engine (and transmission) performance. It’s recommended for use in both air-cooled and liquid-cooled 4-cycle engines and it’s compatible with wet-clutch transmissions.

Max-Cycle’s high film strength dramatically reduces wear. Take a look at the pictures of cam chain tensioners below.

Each tensioner came from an American V-Twin engine with 18,000 kms of use. The tensioner on the left is from an engine that used the manufacturer’s conventional oil. The tensioner in the middle is from an engine that used the manufacturer’s synthetic oil. The tensioner on the right is from an engine that used Royal Purple after an initial break-in period of 2000kms. Once again, all of the cam chain tensioners are shown after a total of 18,000 kms of use. The difference in wear is dramatic.

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Hot Rod magazine Endorses Royal Purple® Lubricants
"It occurred to us that we've yet to run a test with Royal Purple® oil that didn't result in a power gain—it might be a marginal gain (as with our little Acura Integra), but it's a gain.
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