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4-Stroke Oil Change Tip
When changing the oil on your 2017 Thundercat or Yamaha Sidewinder, be sure not to overfill your oil. The proper amount of oil is indicated on a sticker posted next to the sight tube on the oil reservoir. According to Cat’s ZR performance line manager Brian Dick, you should fill the oil until the level in the sight tube reaches just above the bottom line (remember, oil level will rise as the sled warms). Overfilling the oil reservoir can cause oil to leak into the turbo unit, causing a noticeable (10-12 mph) loss of power.