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  (#1)
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Posts: 180
Join Date: June 14, 2003
Location: Manassas
June 29, 2005, 11:06 PM

I'm curious if anyone has used or is using the Repsol Moto 4T 15W50 in racing or regular formula? I have been using HP4 for most of the bike's life w/ some Mobil 1 here and there but I'm hearing some negative things on Mobil 1 in motorcycle use, mainly in the gearbox and the ability for motorcycle specific oils to stay attached to the gears better than auto grade oils. Also is 15-50 on the thick side or is it o.k.?
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  (#2)
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Join Date: March 28, 2005
Location: arlington, va
June 30, 2005, 02:55 AM

if you want the cliff notes on the which oil is better, blah blah blah

Basically, it doesn't matter what oil you use as long as you change it often.

Most claim that friction modifiers that are in some oils are bad for wet clutches, amsoil says it doesn't make a difference

Synthetic does not have the impurities like wax and other stuff that is in real oil.

As for 15w-50, it should be fine, specially if it is a synthetic oil, soon you'll stop seeing viscous weights for synthetic oils anyway, technology is amazing

A vast amount of sportbike riders use Shell Rotella T, it is a deisel oil for big 18wheelers, you can get it at wal-mart for VERY cheap.

In every test i've seen mobil-1 brand oil has the best retention times, but if you change your oil like you are supposed to it doesn't matter.

See links below if you would like some light reading:
http://www.xs11.com/stories/mcnoil94.htm
http://www.gis.net/~manjo/motorcycle_motor_oil.htm
http://motorcycleinfo.calsci.com/Oils1.html
http://www.xs11.com/stories/mcnoil94.htm
http://www.twocreeks.net/toby/oil_filters/index.shtml
http://www.lincolnsonline.com/article105.html
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  (#3)
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June 30, 2005, 02:08 PM

Nicky hatden uses it, but it does not help him beat Rossi!
hope that answered your ?


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"Had enough rice? Try some apple pie."
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  (#4)
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June 30, 2005, 03:04 PM

Ive used it works good


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  (#5)
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Join Date: April 12, 2005
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June 30, 2005, 03:29 PM

The Mobile-1 oil everyone talks about -- is there a motorcycle specific brand of Mobile-1? Where do you find it because I have never seen it?
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  (#6)
whats in your drink?
 
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June 30, 2005, 03:36 PM

Of all places I have seen the mobil1 cycle oil at wallyworld and pep boys


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  (#7)
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June 30, 2005, 03:51 PM

I've only seen the Mobile-1 CAR oil at Wally World. Maybe I need to get new specs....
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  (#8)
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Posts: 57
Join Date: April 13, 2005
July 2, 2005, 10:55 AM

Shell Advance is for motorcycles.
Quote:
Originally Posted by becman
if you want the cliff notes on the which oil is better, blah blah blah

Basically, it doesn't matter what oil you use as long as you change it often.

Most claim that friction modifiers that are in some oils are bad for wet clutches, amsoil says it doesn't make a difference

Synthetic does not have the impurities like wax and other stuff that is in real oil.

As for 15w-50, it should be fine, specially if it is a synthetic oil, soon you'll stop seeing viscous weights for synthetic oils anyway, technology is amazing

A vast amount of sportbike riders use Shell Rotella T, it is a deisel oil for big 18wheelers, you can get it at wal-mart for VERY cheap.

In every test i've seen mobil-1 brand oil has the best retention times, but if you change your oil like you are supposed to it doesn't matter.

See links below if you would like some light reading:
http://www.xs11.com/stories/mcnoil94.htm
http://www.gis.net/~manjo/motorcycle_motor_oil.htm
http://motorcycleinfo.calsci.com/Oils1.html
http://www.xs11.com/stories/mcnoil94.htm
http://www.twocreeks.net/toby/oil_filters/index.shtml
http://www.lincolnsonline.com/article105.html
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  (#9)
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July 2, 2005, 11:17 AM

It deepends what kind of use you do to your bike. lets say if you are not satisfied wiht your gears and that they are getting "missed" why dont you use some STP it will work. now the higher the grade of the oil then the higher pressures you will get and one more thing using variable grade oils is for regular use. if you have the bike for racing then you get racing oils which go in single grade like 40 or 50 etc. that type of oil is very thick and better than the variable viscocity. they are more expensive as well.
about the gear thing is that you have to check what the bike needs it may need to add some "Moly" so check the bike how it rides without "moly" oil and if it doesnt satisfy you use the "Moly" oil. you can buy oils that are allready blended with moly or you can make your own blend. doing that though you have to know that you might loose the neutral gear while the bike is running so you'll have to turn the engine off in order to get to neutral. so you ll never miss a gear again. Mobil has a formula 1 that they call it 4T and its for bikes 0w40, never used it cause i believe its not thick enough. either used the repsol 15w50,Motorex has 15w60 its good,Ipone Oil Katana 4T 15w50 its good, shell advance 10w50 its not that bad it could be better though.Motul is good as well you can have PJ1 and then you get the solo grade oil which is 5 times more expensive but it lasts longer under race conditions.
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  (#10)
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July 2, 2005, 11:28 AM

Quote:
Originally Posted by Ninja636
The Mobile-1 oil everyone talks about -- is there a motorcycle specific brand of Mobile-1? Where do you find it because I have never seen it?
when you go to the esso / exxon request for the catalogue they have whith the oils and look in the Motorcycle/Marine Oils and you will get the MOBIL Formula 1 4T specially for motorcycles with the low grade of 0w40. Good for winter just before the snow falls if you use in the summer you may melt everything in the engine.
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  (#11)
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July 2, 2005, 11:51 AM

Never used it myself but I have heard good thingas about it.


God Speed Jeff! You'll never be forgotten.

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  (#12)
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Location: Manassas
July 2, 2005, 02:38 PM

Ahhh heh, I did not know there was a specific moto mobil1....they even have it in 10W-40.
http://www.mobiloil.com/USA-English/...4T_10W-40.aspx
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  (#13)
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July 2, 2005, 03:43 PM

Red cap mobil one.


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  (#14)
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July 2, 2005, 05:14 PM

Quote:
Originally Posted by f3pilot
Ahhh heh, I did not know there was a specific moto mobil1....they even have it in 10W-40.
http://www.mobiloil.com/USA-English/...4T_10W-40.aspx
thats the one
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  (#15)
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July 3, 2005, 10:09 AM

I put the 10w50 pure synthetic into my Duc, mostly because the Motul wasnt in stock. My guess is the quality is about the same.
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