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changing brands of oil bad?

  #1  
Old 05-08-2010, 08:27 PM
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Default changing brands of oil bad?

Do you think its a bad idea to get an oil change and get repsol Fully synthetic then next time you change oil gettin just like the normal stuff most dealerships use at basic oil change service?
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Last edited by F4iMane; 09-09-2011 at 06:17 AM.
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Old 05-08-2010, 08:38 PM
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Not sure why'd you'd downgrade but a single oil change won't affect anything. Not unless you use the wrong type of oil.

Using a high end oil affects the life of the engine and its parts over time. Same way in a pinch you can throw a quart of the cheapest stuff possible in there to get you home without any lasting effect. Again, so long as its the right weight and viscosity
 
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Old 05-08-2010, 09:25 PM
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If the oil meets factory specifications and is suitable for a wet clutch, then changing brands or even types won't hurt anything.
 
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Old 05-08-2010, 10:10 PM
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What about going from synthetic to regular? The guy at the dealer told me that once you start using synthetic, it's bad on the engine to go back.
 
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Old 05-08-2010, 10:24 PM
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Default Synthetic to regular to synthetic is fine

Originally Posted by kowen1208 View Post
What about going from synthetic to regular? The guy at the dealer told me that once you start using synthetic, it's bad on the engine to go back.
It's not bad to go back and forth from synthetic to regular oil. I start every riding season with a cheap oil like Castrol 4T 10W40 motorcycle oil and then switch to the Shell Rotella T Synthetic 5W40 when it gets a little hotter outside.

Just like said before, stay with the proper type of oil suited for motorcycles and you should be fine.

I also use a cheap oil for winter storage too. I go and buy whatever Walmart has as the cheapest 10W40 to use to sit in my bike over the winter (cheapest meaning, cheap car oil). I only start the bike up once with the cheap oil--when I am ready to change the oil back to the Castrol 4T (this is just to heat up the oil so it can flow out easier).
 
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Old 05-08-2010, 11:50 PM
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What about going from synthetic to regular? The guy at the dealer told me that once you start using synthetic, it's bad on the engine to go back.
He's full of it. Maybe you should change dealers with your next oil change, too...


If the oil meets factory specifications and is suitable for a wet clutch, then changing brands or even types won't hurt anything.
Yep, pretty much this. Your manual should tell you all you need to know. Only thing it won't tell you is that you should go to wal-mart, score a gallon of rotella T, and change it yourself!
(That's my job....lol)
 
  #7  
Old 05-09-2010, 02:44 PM
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Hell, my last oil change I mixed three different oils (Honda GN4, Repsol 4T moto, Repsol Sintetico) and everything is running just swell.
 
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Old 05-09-2010, 07:51 PM
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Originally Posted by kowen1208 View Post
What about going from synthetic to regular? The guy at the dealer told me that once you start using synthetic, it's bad on the engine to go back.
I was told the same thing, even though, I'm just personally nervous to run anything less, one of those, "pay to play" kinda things. Plus, I plan on riding my bike till it dies, so synthetic will help it run longer.
 
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Old 05-09-2010, 08:24 PM
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Originally Posted by kowen1208 View Post
1.) What about going from synthetic to regular?

2.) The guy at the dealer told me that once you start using synthetic, it's bad on the engine to go back.
1.) That's what I meant when referring to a change in oil "type."

2.) In addition to being wrong, I doubt he could explain why he thought that was true other than being a way to scare you into buying their more expensive oils.

Drain the synthetic out and put a high quality conventional oil in there if you like. You're not going to hurt anything.
 
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