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indybobm
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« on: April 18, 2012, 07:39:16 AM » |
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I have been thinking about using Valvoline 75w140 full synthetic gear oil in the final drive. Good idea or bad? Anybody used this?
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« Last Edit: April 18, 2012, 07:41:33 AM by indybobm »
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So many roads, so little time
VRCC # 5258
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98valk
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« Reply #1 on: April 18, 2012, 09:29:54 AM » |
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manual calls for 80w90. I use amsoil 75w90.
using w140 will reduce mpg and power to the ground, no need for that thick oil.
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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
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fudgie
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Posts: 10613
Better to be judged by 12, then carried by 6.
Huntington Indiana
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« Reply #2 on: April 18, 2012, 04:51:25 PM » |
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I guessing you ment 40 instead of 140. I use the Valv stuff and its all good.
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 Now you're in the world of the wolves... And we welcome all you sheep... VRCC-#7196 VRCCDS-#0175 DTR PGR |
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Patrick
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Posts: 15433
VRCC 4474
Largo Florida
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« Reply #3 on: April 19, 2012, 06:23:23 AM » |
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I wouldn't be afraid to use it.. 75W140 is a 75 weight oil with the film strength of 140..
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98valk
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« Reply #4 on: April 19, 2012, 07:05:47 AM » |
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I wouldn't be afraid to use it.. 75W140 is a 75 weight oil with the film strength of 140..
and the thicker visocity of a 140. it is a 75w at lower temps, at higher temps it gets thicker. |
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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
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Mr.BubblesVRCCDS0008
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« Reply #5 on: April 19, 2012, 07:06:35 AM » |
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Been running it in mine for a very long time. Bike has 147 thousand miles on it and still runs better than new.  |
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Patrick
Member
Posts: 15433
VRCC 4474
Largo Florida
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« Reply #6 on: April 19, 2012, 11:09:58 AM » |
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It still surprises me as to how much misinformation there is floating about oil..
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Mapper
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« Reply #8 on: May 16, 2013, 10:51:30 PM » |
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Anything new on this issue? How hot does the pumpkin get anyway?
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Ricky-D
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« Reply #9 on: May 17, 2013, 08:15:43 AM » |
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Oil does not thicken with heat.
Where do these ideas come from?
***
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2000_Valkyrie_Interstate
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Kunkies
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« Reply #10 on: May 17, 2013, 09:35:17 AM » |
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I use, no issues. the thicker oil provides greater cushion and therefore less wear.
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Madmike
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« Reply #11 on: May 17, 2013, 10:03:50 AM » |
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just for general info in case some are not aware - gear oil weight and engine oil weight are done on different scales and so they don't directly compare number to number.. http://micapeak.com/info/oiled.html shows a type to type comparison and some centistoke numbers as a baseline. I realise that this is basic and redundant info for some of you but others may find it interesting. After my original posting I saw that CA already posted a similar link below from bobistheoilguy.com which gives a bunch of comparisons for the various grading systems that are used by industry and the military. I guess as regards the oil thickening with increase in temp. - the polymers reacting to the heat and getting bigger is accepted theory so take it from there. |
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« Last Edit: May 17, 2013, 10:37:59 AM by Madmike »
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98valk
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« Reply #12 on: May 17, 2013, 01:24:46 PM » |
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Oil does not thicken with heat.
Where do these ideas come from?
***
yes the wording was incorrect/confusing, I forget what the std temp is 40C or 100C aka normal operating temps it is a 140w oil at lower temps it is will thin out to a 75w good read motor oil 101 http://www.toyotatundraforum.com/techno-world/567-motor-oil-101-a.html |
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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
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Earl in Pensacola
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« Reply #13 on: May 17, 2013, 05:44:26 PM » |
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Just for the "heck-of-it",pour some muliti-grade (10/40 or 15/40 or 20/50)out of the can into something you can stick your hand into (like a clean metal bucket) to feel the consistancy (thickness). Then heat the oil to about 200 degrees, let it cool to whatever temp. you can stand to put your hand into (like 110 degrees). Notice that the "feel" of the oil is THINNER! Now having said that--Here is how a Standard Oil Co. rep. expalined it to me. Multigrade oils are "graded by their flow rate. A cold 10/30 wt oil will have a certain rate of flow and the same oil at operating temp. will retain the same flow rate as a 30 wt. at the same temperture. The flow rate of a HOT single grade oil will increase (thinner). It maybe only the choice of words, but I think that it just means the milti-grade oil has the ability to retain a certain thickness, even when at full operating temp.s, hense, greater protection, inspite of the fact that it is actually thinner than when it can out of the can. All this. IMHO
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