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  #1  
Old 09-28-2019, 03:11 PM
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Default Yamaha SHO Oil Change

What are you guys using in your SHO, synthetic or standard?
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  #2  
Old 10-01-2019, 12:27 PM
jjy jjy is offline
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Standard 10w-30 Yamalube. Seems these engines take a while to break in. Hard cylinder walls. Like all my vehicles before synthetics, standard oil was good for 250-300k miles with no oil related failures. Just check and change it when your supposed to. I've never had oil related failure on any engine I've owned. Having said all of that, I may go to synthetic at 300hrs. Just to make me feel better about my 25k engine.
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Old 10-02-2019, 08:10 AM
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Be careful with full synthetic oil in small engines as it can seep by some seals and gaskets. Found this out the hard way on a generator.
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  #4  
Old 10-02-2019, 11:24 AM
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Quote:
Originally Posted by Bobby Winds View Post
Be careful with full synthetic oil in small engines as it can seep by some seals and gaskets. Found this out the hard way on a generator.
That is generally caused by switching back and forth between conventional and synthetic, usually on older engines. Newer engines have different seal materials that can handle switching back and forth better, but can still be an issue. Best practice is to pick one and stick with it.
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Old 10-02-2019, 05:32 PM
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Thanks everyone I appreciate it.
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  #6  
Old 10-03-2019, 08:27 PM
Mrxlh Mrxlh is offline
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Once it quits making oil, the Yamalube Syn 10W30 or 5W30. I am running the 5W30 in my 250.

Keep a close eye on your oil level, as JJY has mentioned they are hard to break in following Yamaha's idiotic break-in procedure. I ended up using MMO in the oil to get them to seat in.
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