Steve Saunders Goldwing Forums

Steve Saunders Goldwing Forums (https://www.goldwingfacts.com/forums/)
-   Goldwing Technical Forum (https://www.goldwingfacts.com/forums/2-goldwing-technical-forum/)
-   -   Difference between Hypoid and Full Synthetic Gear Oil (https://www.goldwingfacts.com/forums/2-goldwing-technical-forum/321787-difference-between-hypoid-full-synthetic-gear-oil.html)

1999JagWing 03-22-2009 11:03 AM

imported post
 
Can anyone out there in wing land tell me the difference between the Hypoid Gear Oil specified in the maintenance manual and a full synthetic gear oil?:?



The reason i am asking is i use full synthetic 75-90 gear oil in my semi, and i have a few GALLONS of it and i am wondering if i can use it in the rear on the 99 1500se.

I would "prefer" to use full synthetic because i think it is better than "regular" oil, but i do not know what the word "HYPOID" means. Does anyone have an idea if i can use full synthetic in the scooter?



Thanks for the info.

Hobie1 03-22-2009 11:11 AM

imported post
 
"Hypoid
Hypoid gear sets are a form of bevel gear, but offer improved efficiency and higher ratios over traditional straight bevel gears. Commonly found in axle differentials and used as the ring and pinion gears, hypoid gears are used to transmit power from the driveline to the axle shafts. Because of the spiral design and sliding action of Hypoid gears extreme pressure additives are required." (taken from the Amsoil site) My thinking is that if you're using "gear oil" of 80-90 weight, you shouldn't have any issues. But that is my opinion only, use at your own risk. However, that being said, I also run synthetic 80-90 gear oil in my differential. I change it every season.

Regards,

Hobie

1999JagWing 03-22-2009 11:19 AM

imported post
 
Thanks Hobie1 and 1500winger.
I am going out right now and change out the 10 year old (i guess)oil and replace it with my full synthetic. I figure if it can hold up to the rigors of pulling 80,000 pounds for 11 hours at the time in all seasons, then it MIGHT be able to handle my fat azz for a few hours.



Man, i changed out the oil, and the stuff in the bike was almost BLACK. I guess it was the original stuff. At least i feel better knowing that the new full synthetic is in there.



Thanks for the info.

Shimmy8 03-22-2009 11:29 PM

imported post
 
A few years ago, GM switched from 80w90 Hypoid Gear Oil to a full synthetic 75w80 in the rear diff, in doing so they dropped the fluid level about 3/4 of in an inch.
They were having problems with the pinion bearrings going out in cold weather on the front diffs of the 4X4 trucks and to fix that concern they had the dealers replace the 80w90 with 75w80 synthetic and this cured the concern.
I have been running synthetic in the front and rear diff of my ATV for about four years, improved the fuel milage a little and rolls out of camp in the cold mornings much easyer.
So I belive you should have no problems.

Big Cahuna 03-23-2009 08:13 AM

imported post
 
I think the biggest difference you'll find is the price. I bought a qt of 80/90 wt store brand gear oil at napa and it cost about $3. The Castrol synthetic gear oil was almost $14. so I felt the cheap stuff has worked for 27 years, why mess with success.,,

Lloyd 09-30-2011 07:39 PM

imported post
 
1 Attachment(s)
What ever you do....DO NOT USE PENNZOIL there fully synth gear lube....it foams like crazy...have photos of it...! I use amsoil as a rule, but this time I was out of my beloved amsoil and went to pennzoil....BIG MISTAKE...! Lets see if I can post a photo of what came out...!









Lloyd 09-30-2011 07:42 PM

imported post
 
1 Attachment(s)
This is what I mistakenly used...never again...I just use whats left as a FLUSHING oil for the gear box...thats all...!





Hobie1 09-30-2011 07:58 PM

imported post
 
It doesn't look right. Almost like it's got water in it. With the weight advertised, it should be thicker. Your Amsoil might of not liked the change.:ssshh:I wonder how it was still foamy coming out of the differential after sitting for a while.

I use synthetic 80-90w and it takes a while to drain.

Anyway, I'm not buying any of that stuff. Somethings not copacetic.

Hobie

Lloyd 09-30-2011 08:01 PM

imported post
 




Now I bet a number of you are wondering how long this oil was in there....you want to trys about 5 minutes....! Let me explain this. When I do a oil change back there I use whats left of the PENNZOIL as a flushing oil to get what ever gear wear and so on particals are in there....to flush it out before I put the good stuff in.



Now to get the PENNZOIL to do this...all I had to do was drain the gear box...refill it with the pennzoil stuff....put the bike on the centre stand....start it and put it in 5th gear and let it run at a idle in most part for a few minutes. Then when I stopped the engine and climbed under...and removed the drain plug...this is what can out...nothing but FOAM...! I did the same with the amsoil...foam....what foam...there was nothing, just a hint of air bubbles in it showing that it was running....otherwise just good solid oil came out.....not soap suds...!



So on my last gear box oil change which was yesterday in fact...I used that crappy pennzoil as a gear box flush...and took photos of what comes out with just a few minutes of the bike running on the centre stand in gear.





Lloyd 09-30-2011 08:08 PM

imported post
 
Hobie1 wrote:
Quote:

It doesn't look right. Almost like it's got water in it. With the weight advertised, it should be thicker. Your Amsoil might of not liked the change.:ssshh:I wonder how it was still foamy coming out of the differential after sitting for a while.

I use synthetic 80-90w and it takes a while to drain.

Anyway, I'm not buying any of that stuff. Somethings not copacetic.

Hobie
Trust me there is NO water....in there what so ever. I have a new GL1800 and I have been doing oil changes in the rear unit ever 5,000 Km's during its break in so that the great bulk of the wear in particals are gotten outa there. Once the bike hits the 30,000 Km's point then it will be reduced to a oil change once a year...maybe once ever 2 years, depending on how many KM's I put on it in any given year. So far I have had the bike for just about 6 months now...and have put 22,000 on it since it was new. Gee can you tell I ride...just a little....



Clearly pennzoil in the GL1800's gear box does not work out....it foams like crazy and this is NOT good...!



Lloyd






All times are GMT -5. The time now is 06:00 AM.

Powered by vBulletin® Copyright ©2000 - 2019, Jelsoft Enterprises Ltd.

User Alert System provided by Advanced User Tagging (Pro) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd.
Shoutbox provided by vBShout v6.2.1 (Lite) - vBulletin Mods & Addons Copyright © 2019 DragonByte Technologies Ltd. Runs best on HiVelocity Hosting.

 
For the best viewing experience please update your browser to Google Chrome