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Author Topic: honda gp4 synthetic oil  (Read 3532 times)
zoltan57
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Posts: 39


Denver, Colorado


« on: August 04, 2009, 01:19:21 PM »

3 weeks a go i bought the honda gp4 synthetic/petroleum blend without moly sae 10w-40 sj since then when i engage my clutch from 1st to 2nd it slips/skips on ocassions and also i noticed alittle more exhaust smell .. previous oil was the standard type and i had no slippage in shifting or exhaust smell... has anyone ever had this problem or is common for this oil as it breaks in ..or do i have a completely different issue..... thanks in advance...emrik
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R J
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DS-0009 ...... # 173

Des Moines, IA


« Reply #1 on: August 04, 2009, 02:26:28 PM »

Sounds like a failure to get your fingers fully off the lever.

I've run synthetic oil (Mobil 1) for well over 200K miles with no problem or slippage.    Did junk out 1 clutch basket.
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asfltdncr
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Posts: 528


« Reply #2 on: August 04, 2009, 04:07:33 PM »

I would drain it and get some Rotella from Wally World.
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BF
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Fort Walton Beach, Florida I'm a simple man, I like pretty, dark haired woman and breakfast food.


« Reply #3 on: August 04, 2009, 07:55:10 PM »

Mobil 20-50 motorcycle v-twin oil and a pure one filter here.  So far, zero problems. 
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98valk
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Posts: 13487


South Jersey


« Reply #4 on: August 05, 2009, 08:26:29 AM »

3 weeks a go i bought the honda gp4 synthetic/petroleum blend without moly sae 10w-40 sj since then when i engage my clutch from 1st to 2nd it slips/skips on ocassions and also i noticed alittle more exhaust smell .. previous oil was the standard type and i had no slippage in shifting or exhaust smell... has anyone ever had this problem or is common for this oil as it breaks in ..or do i have a completely different issue..... thanks in advance...emrik


honda oils tested to be one of the worst oils to use by Motorcycle consumer news a few yrs ago.
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C  10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp

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zoltan57
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Posts: 39


Denver, Colorado


« Reply #5 on: August 08, 2009, 10:40:44 PM »

ok.. so the honda oil gp4 sucks,,, what brand and type can i buy off the shelf ....
thanks
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98valk
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Posts: 13487


South Jersey


« Reply #6 on: August 09, 2009, 04:45:45 PM »

ok.. so the honda oil gp4 sucks,,, what brand and type can i buy off the shelf ....
thanks


rotella 5w40 is a group III oil which is classified by law as a syn and actually has specs similar to the group IV/V mixtures on the market.  any 15w40. I have mobil delvac 15w40 in the bike right now.  Chevon Delo 15w40 has more moly than the others, but the level is still low enough to not affect the clutch.
I also use AMSOIL 10w40, the one for cars as it has always been rated for cycles, started using it in the mid '80s. Now they sell more $$$ cycle specific oil, a little bit better specs but much more $$$.
my next change I will be using Amsoil 10w30/30HD diesel oil.
and of course MOBIL 1 is used by a lot of people.
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C  10speed
1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp

"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other."
John Adams 10/11/1798
zoltan57
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Posts: 39


Denver, Colorado


« Reply #7 on: August 09, 2009, 08:30:20 PM »

which type of mobil one do i use........ also some one gave me 4 quarts of amsoil synthetic 10w-40 motorcycle oil which i havent used yet its been sitting on the shelf... is type good also?
thanks
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Mr.BubblesVRCCDS0008
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Huffman, Texas close to Houston


« Reply #8 on: August 10, 2009, 09:45:45 AM »

mobil one 15W50 is the automotive grade to get if that's what you want to run. It is the only one without friction reducing agents. This is what I run is my bikes.
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