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The PO used Honda oil 20W50 Summer 10W40 Winter, do you think I should stay with that or change. Tim
 

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I use 20w-50 racing oil as of recently. I liked the way it made my bike shift. I will use it during the warm weather then switch to 10w-40 castrol for the winter months.
 

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I use Castrol 20-50 The bike shifst real nice with it.
 

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I USE 20/50 CASTROL IN EVERY THING I HAVE LAWN MOWER 08 TAHOE 96 CHEVY PU (330,000 MI.) GL1800. YEAR ROUND. WORKS GREAT
 

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i use 10 w 30 all summer,cause when i used 20w50 and let the bike parked for winter the clutchs would stick
 

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Either 20/50 or 10/40 Castrol.
 

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1987 GL1200 Interstate
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Valvoline 20~50 racing oil.

Because it has anti-foam additives. The 1200 has anti-foam chambers, but I guess it won't hurt to help them work.

Mostly, since I started using it, 2 bikes previous to this 'Wing, I've never had an oil related problem.
 

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20/50 house brand from Advance Auto. Like'n it so far
 

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I use Castrol 20-50 because it's always on sale. The bike shifts nice.
 

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I've used Castrol 20-50 GTX in my bikes for the last 30 years. Never had an oil related problem.
 

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I have used 20W-50 Castrol GTX in my Goldwings since my nephew started racing drag bikes; He even gave me my first 5 quarts free. He said, with a big grin, "Try it. If you don't agree it at least improves shifting, give it back, and I'll drink it!!"

Kept the oil, used it ever since, just change it every 3,000 miles. That was 400,000+ miles ago.
 

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I cast the "odd vote" for Castrol Syntec Blend 20/50.
 
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1993 gl1500, 1976 gl1000
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Castrol 20/50 in summer. Ditto on smoother shifts. Engine also runs quieter. May stay with it this winter.
 
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I did 160,000 miles in about 16 yrs time on a 1978 Kawasaki KZ650 I bought new. Changed oil every 2000 miles, filter every other change, used Castrol GTX 20w50 summer, 10w40 winter. You know what the inside of that engine looked like at 160,000 miles? 1/4-1/2" of sludge completely caking the entire engine. I went to change oil that last time, removed the drain bolt and half a quart of 90wt sludge oozed out and that was it. Well this engine is officially done. I was worried of Castrol in a motorcycle ever since. Of course old worn air cooled engine vs a goldwing are oranges to apples, but I still to this day would never use castrol again.
 

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I too use 20X/50X in my Wing for the summer.

I do drop to 10W/30 for the winter and it works well down to 16 Below anyway.
 
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