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Suzuki ECSTAR R9000 10W-40 Full Synthetic Oil Change Kit for Suzuki Boulevard M109R VZR1800 2006-2009
Suzuki's own ECSTAR R9000 full synthetic is purpose-built for the VZR1800's 1783cc V-twin, so compatibility isn't a guessing game. The 10W-40 viscosity matches Suzuki's factory specification for this engine, giving you proper cold-start flow without sacrificing film strength under the heat a big-bore cruiser generates. The kit format bundles oil and filter together, which keeps servicing straightforward. Caveat: coverage is listed through 2009, so verify fitment if you're running a later M109R variant before ordering.
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