Oil and performance, GL1200 - Steve Saunders Goldwing Forums

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post #1 of 11 (permalink) Old 09-03-2012, 09:11 PM Thread Starter
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I bought this 1200 from a friend. The bike was store for quite sometime and he had everything done before taking out on the street and find out he didn't like it (he got it from his father-in-law), after all he is a Harley nut (poor guy).
He told the shop put in synthetic oil, 10/40. (I have a feeling it was 20/50).
The bike ws running good but not as good as my previous 1200 a year older with 50K more miles. I thought it was because of the aftermarket exhaust.
I installed an OEM exhaust and she started running a lot better, By then, I was not sure if it was as good as my previous 1200.
4K miles later I changed the oil and put the old Valvoline 10/40. HOLY #$*&.......It was going from drinking dirty water to $200 wine.
It's running a lot smoother, shifts a hack of a lot better (before I was grinding it so much that I thought I forgot how to shift), my idle went from 980 to 1220 (I had to readjust) and my milage went from 43 flat to 46.5
On my 40 years riding I never experience something like this, but then again, I've been a "winger" for 5 years only.
Has anyone had this kind of experience?

Kiko - The Brazil Nut.
02 GL1800ABS (Current)
89 GL1500
86 GL1200 Aspencade
85 GL1200 Aspencade
83 GL1100 Interstate
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post #2 of 11 (permalink) Old 09-03-2012, 09:39 PM
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You that is amazing, put in Delo400 LE 15w40 next time. Many proven miles here.

Stu
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post #3 of 11 (permalink) Old 09-03-2012, 09:44 PM
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Delo for certain!!!

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post #4 of 11 (permalink) Old 09-03-2012, 10:03 PM
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The parts store near me sells DelVac instead of Delo. I still like it.

I used to use Castrol Syntec Blend in my GL-1200 and now see that I wasted considerable $$ on that.

My name is Rusty. I'm an enthusiast of things that ride, drive and fly.

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post #5 of 11 (permalink) Old 09-04-2012, 12:53 AM
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I've used Valvoline in my last 3 bikes and always been happy with it. I just tried the Delo, and I'm not really impressed. Bike is noisier for sure, but that may be the Delo's15~40 versus Valvoline 20~50, in the Arizona heat.

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post #6 of 11 (permalink) Old 09-04-2012, 07:27 AM Thread Starter
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I think I didn't explain well.
The point I was trying to make was not the oil brand, was the unbelievable improvement on performance.
I've used Castrol, Valvoline and a few other good brands including regular automotive oil (when I was young and stupid that cost me my clutch) , but never used Synthetic or anything other then 10/40.
I was thinking it might have been the 20/50 that caused the lost of performance.

Kiko - The Brazil Nut.
02 GL1800ABS (Current)
89 GL1500
86 GL1200 Aspencade
85 GL1200 Aspencade
83 GL1100 Interstate
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post #7 of 11 (permalink) Old 09-04-2012, 08:11 AM
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fcesar wrote:
Quote:
I think I didn't explain well.
The point I was trying to make was not the oil brand, was the unbelievable improvement on performance.
I've used Castrol, Valvoline and a few other good brands including regular automotive oil (when I was young and stupid that cost me my clutch) , but never used Synthetic or anything other then 10/40.
I was thinking it might have been the 20/50 that caused the lost of performance.
Interesting that you should believe that to be so.

I have a Triumph Trophy 1200 that recommends 20w50 for summertime, and I see no perceptible difference in performance when I switch to the 10w40 in cooler months.

If you had bad oil, then perhaps. But simply the difference between 10w40 and 20w50? I would not believe that solely to be the issue.

My name is Rusty. I'm an enthusiast of things that ride, drive and fly.

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post #8 of 11 (permalink) Old 09-04-2012, 10:01 AM
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rgbeard wrote:
Quote:
Interesting that you should believe that to be so.

I have a Triumph Trophy 1200 that recommends 20w50 for summertime, and I see no perceptible difference in performance when I switch to the 10w40 in cooler months.

If you had bad oil, then perhaps. But simply the difference between 10w40 and 20w50? I would not believe that solely to be the issue.
Not so hard to believe for me. My 78 Suzuki 850G calls for 10-30. I put 10-40 in it and it would not shift. Went back to 10-30 and all was well. This was in the heat of summer. All were motorcycle specific dino juice.

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post #9 of 11 (permalink) Old 09-04-2012, 11:51 AM
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Honda recommends a number of oil weights. Temperature dependent. 20/50 is good for 30 degree and above temps. I use 20/50 dino oil in my 1000 and my 1500. Both run quieter and shift smoother with it. Besides, didn't you say you "believed" the oil to be 20/50? Not sure if the weight of the oil had anything to do with the improvement. Glad the bike is running so much better though whatever the reason!

Tom

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post #10 of 11 (permalink) Old 09-04-2012, 09:50 PM
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I agree with others, not so sure the change from 20w50 to 10W40 would do that .... sure didn't on my '85 1200 and I have run Honda Synthetic Blend HP4 20w50 in it before. Istopped with the 20w50 when I had a time or two the starter clutch would slip (the oil was cold and I guess thick enough the rollers didn't kick out?).
I then switched to the 20w40 or whatever it is Honda Synthetic Blend HP4 (never had a hickup with the starter sprag since?) until last oil change when I switched to the Delo 400LE 15w40 (I caught a sale at work, have about 10 gallons of the Delo on hand now).


I know some of the old FLHs and such used a really thick oil for their roller bearings and I have bought some for a buddy to use in his '76.... Kendall GT-1 Racing Oil in straight 50 wgt (you can get 70 wgt .... for like nitro mixes?) which he said was same as HD sold rebranded as HD oil.

I wonder if .... ????? .... Naw, surely not!








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