what coolant and drive oil to use? - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 24 (permalink) Old 04-24-2010, 05:24 AM Thread Starter
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what coolant and drive oil to use?

my vn750 is a little low on coolant and just wanted to know what kind I should get/use?

also, I will be replacing the rear tire soon and lubing the splines. and while I'm doing all that I thought I'd change the drive oil too. so what kind of oil should I get/use?

thanks.

ps. yeah, I know. I could've done a search on this, but I'm lazy!
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post #2 of 24 (permalink) Old 04-24-2010, 10:18 AM
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I've been told by a local repair shop that has nothing to do with a 'stealership' to always use a coolant that is compatible with aluminum and includes a lubricant for water pumps. My GL500 is a good example: to change the water pump in that engine, you must drop the engine split the cases!

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post #3 of 24 (permalink) Old 04-24-2010, 10:23 AM
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Ouch DT, please tell me it aint so... I don't want to split the case on my CX500... (same engine)... but then again I might not own it long enough to have to worry, thinking about selling the CX to cover costs of an engine rebuild on the Jeep.
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post #4 of 24 (permalink) Old 04-24-2010, 10:30 AM
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Slim the CX/GL models make great looking 'sport / touring' bikes. They were ahead of their time in design, a wonderfully built solid engine all the way up to 10k rpm. Check your valve tappets (can you believe it's a push rod engine?), clean the carbs, always check your coolant level before each ride, and you should be good to go. Add some sport bike bars (some folks call them super bike bend) lower the seat, add a small faring and it's a fun ride. The only design problem is it's tall in the saddle when stopped, but the foot peg / seat height are for short legs - go figure.
Here's a pic of my 500 while on a 700+ mile trip - just a little outing on a GL:


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Last edited by dirtrack650; 04-24-2010 at 10:33 AM.
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post #5 of 24 (permalink) Old 04-24-2010, 12:39 PM
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Quote:
Originally Posted by ruger View Post
my vn750 is a little low on coolant and just wanted to know what kind I should get/use?
also, I will be replacing the rear tire soon and lubing the splines. and while I'm doing all that I thought I'd change the drive oil too. so what kind of oil should I get/use?thanks.
Like DT said "always use a coolant that is compatible with aluminum and includes a lubricant for water pumps." and I would add to it, at least have a 50/50 mixture if not a bit stronger as the boiling point will go up quite a bit on a good strong mixture, plus it will be stout enough that if in an emergency you need to, you can add a bit of water...
On that last question "change the drive oil"...???
Well, its not a Hardly because you need anti-freeze, I'm stumped if you don't change it with the engine...
Someone help him here, my CRS must be worse than I thought...
Have a good one...Old Dog...

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post #6 of 24 (permalink) Old 04-24-2010, 01:04 PM
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I am guessing here you mean "final drive oil" that goes into the rear hub.

I would use any synthetic gear oil within the 70w-120 range.

I am using Mobil One 75w-90 now , but have used Supertech synthetic gear oil also.

The manual calls for a 90w "hypoid gear oil" but EVERYONE uses synthetic gear oil now because it aint that much more expensive, and it is just simply better.


I am surprised you have not changed the final drive oil before. On a used bike it's the one of the first things to do and on a new bike it should be done with the first engine oil change.


Any coolant that says "safe for aluminum" is fine to use. Buy a bottle of distilled water to make a 50/50 mix, DO not fill over the full line, as it will just overflow when the bike gets hot.


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Last edited by Knifemaker; 04-24-2010 at 01:06 PM.
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post #7 of 24 (permalink) Old 04-24-2010, 01:06 PM
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Quote:
Originally Posted by ruger View Post
ps. yeah, I know. I could've done a search on this, but I'm lazy!
C'mon ruger, you know where to go.... All this info is in the Versus
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post #8 of 24 (permalink) Old 04-24-2010, 02:20 PM
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Quote:
Originally Posted by Knifemaker View Post
I am using Mobil One 75w-90 nowKM
Thats what I used, I remembered the Mobil 1 but couldn't remember the 75w-90 part... I always changed at every oil change, shucks it didn't hold hardly any, so why not...
Thank KM, you got my CRS streightened out...lol...
Have a good one...Old Dog...

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post #9 of 24 (permalink) Old 04-24-2010, 05:46 PM
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Ruger: Here is testing showing the GEAR LUBE product ,tested against all respectable products that talked about in our forum. Thanks for looking the products on the market TESTING and of course make an educated opinion/choiceof what products to use.
http://www.amsoil.com/lit/g2457.pdf
They also make coolant with a sealing agent and a wetting agent.
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post #10 of 24 (permalink) Old 04-25-2010, 10:04 AM
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If you live in a climate that does not see freezing temps, I would use deionized water and a water wetter such as Red Line.

More better cooling properties than any glycol mix.

Jon

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