• 4 Stroke Husqvarna Motorcycles Made In Italy - About 1989 to 2014
    TE = 4st Enduro & TC = 4st Cross

  • Hi everyone,

    As you all know, Coffee (Dean) passed away a couple of years ago. I am Dean's ex-wife's husband and happen to have spent my career in tech. Over the years, I occasionally helped Dean with various tech issues.

    When he passed, I worked with his kids to gather the necessary credentials to keep this site running. Since then (and for however long they worked with Coffee), Woodschick and Dirtdame have been maintaining the site and covering the costs. Without their hard work and financial support, CafeHusky would have been lost.

    Over the past couple of weeks, I’ve been working to migrate the site to a free cloud compute instance so that Woodschick and Dirtdame no longer have to fund it. At the same time, I’ve updated the site to a current version of XenForo (the discussion software it runs on). The previous version was outdated and no longer supported.

    Unfortunately, the new software version doesn’t support importing the old site’s styles, so for now, you’ll see the XenForo default style. This may change over time.

    Coffee didn’t document the work he did on the site, so I’ve been digging through the old setup to understand how everything was running. There may still be things I’ve missed. One known issue is that email functionality is not yet working on the new site, but I hope to resolve this over time.

    Thanks for your patience and support!

Te 250 2011 oil choice

These bikes carry very little oil to begin with, and hi-speed running will blow much of that .9qt capacity into the airbox.....soooo..the big deal is making sure there is oil in the bike in the 1st place!

More than likely any quality Synthetic wet clutch oil will be fine as long as you keep it fairly clean and the sump topped up.

I like to use Spectro Off-Road because it is readily available and is supposed to have a lot of additives that are not found in on-road approved oils.

I am currently using a stock of some 10-60 wt they made special for us Husky guys.....(thanks Joe Chod!) but I'm sure the 10-40 is fine as well. FYG, the one dealer oild change I had was BelRay Thumper 10-40.

BTW, I've had 2 of these motors apart and they looked pretty good to me....tight bearings, rings, trans clutch...they all looked good. One of the bikes was pounded hard and the motor looked fine except for the blown out e-start and the fact that is was burned to a crisp in a fire!

I think the basic x-light motor is pretty tough. the E-start and FI is another story though.
 
Interesting---it looks like I need to make a phone call to confirm what my local dealer told me about using 15-40 in the 310. My dealer has a very close relationship with a VERY large and reputable Husky dealer and in speaking with them, he was told that they'd found 15-40 to be a better choice. My dealer didn't state which brand of 15-40, however. I won't give the name of the very large and reputable dealer in case I heard incorrectly or my local dealer misunderstood but they are one of the largest in the country. It could also have been 15-50--the reason it struck my interest was the 15w versus 10w.
 
Interesting---it looks like I need to make a phone call to confirm what my local dealer told me about using 15-40 in the 310. My dealer has a very close relationship with a VERY large and reputable Husky dealer and in speaking with them, he was told that they'd found 15-40 to be a better choice. My dealer didn't state which brand of 15-40, however. I won't give the name of the very large and reputable dealer in case I heard incorrectly or my local dealer misunderstood but they are one of the largest in the country. It could also have been 15-50--the reason it struck my interest was the 15w versus 10w.

15W40 a better choice, but it might be 15W50. Hmmm...thanks for clearing that up! :D
 
Here's an interesting twist in the discussion. I e-mailed Amsoil to ask if their 10W40 would be okay to run in my 2012 TE310 and here is what they replied:

Hi Mike,
Unfortunately, we do not have a product that will satisfy the viscosity requirements. This is on our radar and we’ll keep it in consideration when adding additional viscosity grades to the line of AMSOIL Synthetic Motorcycle Oils.
Please contact our Technical Services Department at tech@amsoil.com or 715-399-8324 with any additional questions. Wish we could help.
Thank you,
Kerry

Apparently when it comes to the TE310, Amsoil does not recommend Amsoil. I'm thinking about taking the Olderhuskyrider approach and going with the Mobil 1 15W50 and change it frequently.
 
I always recommend the lowest primary number, this starts the oil closer to the "warmed up" state that the oil needs to be in order to hydroplane the bearings sufficiently and this is why 0w40 is so popular. The 310 oil recommendation by Husqvarna is to use a 50W oil on the thin side (17cSt@100 vs 18-24). So naturally everyone tends to put 50 weight oil in on the thicker side, even 60 at times. While the thicker oil will increase oil pressure, it will also drop the flow proportionately which lowers the cooling and bearing separation. It is safer to go with a 40 weight oil that runs on the thicker side than to try to match a 50 weight oil that is thin enough to meet manufactures specifications. Mobil1 15w50 is a great choice, 18cSt. Mobil1 5W50 is also a great choice, 17.4cSt. Both these oils hold their viscosity very well. Mobil 1 0w40 is a superior oil as well, 14.5cSt.
 
I'm using up my case of Castrol 10-50 16.9 cSt @ 100 for now. Then I may assist Exxon Mobil and Wal Mart each to hit new profit highs by buying Mobil 1 5w-50 at rock bottom prices.
 
Interesting---it looks like I need to make a phone call to confirm what my local dealer told me about using 15-40 in the 310. My dealer has a very close relationship with a VERY large and reputable Husky dealer and in speaking with them, he was told that they'd found 15-40 to be a better choice. My dealer didn't state which brand of 15-40, however. I won't give the name of the very large and reputable dealer in case I heard incorrectly or my local dealer misunderstood but they are one of the largest in the country. It could also have been 15-50--the reason it struck my interest was the 15w versus 10w.
This is a discussion site on the internet. Not everyones input will match nor will everyones input be correct.
 
I've heard people use The Shell T6 Rotella 5w-40w with good results. How does this fair in the numbers?
 
Shell Rotella® T6 5W-40
Kinematic Viscosity @40°C mm²/s 87
Kinematic Viscosity @100°C mm²/s 14.2

I've seen a lot of pros use it down here while giving the sponsor oil out to fans. It competes with Delvac in their brochures. I would use it if Mobil1 wasn't available.
 
15W40 a better choice, but it might be 15W50. Hmmm...thanks for clearing that up! :D

Yeah, not real clear as far as 40w or 50w BUT it was the 15 that struck my interest. This shop is well known to most and they sponsor several riders and have a lot of insight into the longevity of the x-lite engine. They stated 15w was better from experience yet some of the input here are stating 15w will have an adverse effect on the engine at start up. That is the only reason I mentioned the 15w suggestion. The shop is closed Monday so I can't confirm it with him directly.
 
I always recommend the lowest primary number, this starts the oil closer to the "warmed up" state that the oil needs to be in order to hydroplane the bearings sufficiently and this is why 0w40 is so popular. The 310 oil recommendation by Husqvarna is to use a 50W oil on the thin side (17cSt@100 vs 18-24). So naturally everyone tends to put 50 weight oil in on the thicker side, even 60 at times. While the thicker oil will increase oil pressure, it will also drop the flow proportionately which lowers the cooling and bearing separation. It is safer to go with a 40 weight oil that runs on the thicker side than to try to match a 50 weight oil that is thin enough to meet manufactures specifications. Mobil1 15w50 is a great choice, 18cSt. Mobil1 5W50 is also a great choice, 17.4cSt. Both these oils hold their viscosity very well. Mobil 1 0w40 is a superior oil as well, 14.5cSt.

So the lower the cSt number the better?
 
Better to look at it this way. We use the viscosity numbers to vary the amount of pressure which our engines develop. If we can maintain the minimum pressure to feed our engines with oil, flow will be maximized. And flow is the only thing that lubricates our engines, the higher the flow, the larger the bearing separation.

So if we look at the manufactures specifications as a starting point, lets say 17cSt, we know at this viscosity the engine is producing plenty of pressure. If we go higher in cSt, our pressure will rise, but we will inversely loose flow volume. The trick is not to go too low in viscosity to where we loose pressure, but to maximize our flow for greater lubrication plus all the other great things that goes with that like smoother shifting, better clutching, cooler bearing temperatures, etc.
 
Which is the lesser of two evils...a 50W that shears down to 40W quickly, or a 40W that holds its viscosity?
 
Which is the lesser of two evils...a 50W that shears down to 40W quickly, or a 40W that holds its viscosity?
How do you define quickly? ;-) We want the facts, numbers... of that shear test. We all need to further our education. (If it doesn't shear down in normal intervals it may be a non issue).
 
How do you define quickly? ;-) We want the facts, numbers... of that shear test. We all need to further our education. (If it doesn't shear down in normal intervals it may be a non issue).

It was a general question, but generally speaking, the comments on Bobistheoilguy.com seem to indicate that the Castrol Racing 4T 10W50 does not hold its viscosity very well.
 
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