Before you speek maybe you should do some searchs yourself like you told someone else in another thread. If you read some past topics it show that YES it "CAN" cause clutch slippage. It has been discussed many times over the years NEW GUY!

 

Nope! OLD GUY!...lol

I'm not going to get in a pissing contest with you. I have tried and used nearly every quality synthetic oil in a variety of bikes, cars and custom offroad vehicles. In some cases I will agree that SOME synthetic oils should not be used in a wet clutch system. Many have friction modifiers including graphite and Teflon additives. These should never be used because there intent is to reduce friction, hence the name "Friction modifiers" Obviously this is not a good thing in a wet clutch. However Redline does not use friction modifiers and if you research what the industry says you will see that not all oils are created equal.

 

That I agree with you fully. And that gets back to what I said. They "can" not will cause clutch slippage. So you have to watch out on what you put in your wet clutch especailly in a DS with the weight and torque it puts out.

 

VTX 1800. 105 HP and 110 Torque. Bike weighs 800 pounds. 41,000 miles on the clock and Mobile 1 synthetic since first oil change. Not a problem. I just love oil threads. LOL [img]i/expressions/face-icon-small-wink.gif[/img]

 

Amsoil is the king of synthetics hand down. For anything with an engine you can't beat it.

 

Been running Castrol Gtx in mine for 3 years with no problems.

 

I use Honda HP4 10-40 SJ synthetic Without moly & 20-50 SJ synthetic without moly. It depends on the time of year. No problems here & ALOT cheaper than the bomb oil. Just my 2cents!

 

I have done three oil changes in my Bomb 2005 and all the oils have been different with different results. First I tried the Bombardier 10w-40 that the manufacture recommends. It ran okay. When the oil got hot the clutch ran hard, slammed into gear every once in a while. Then I ran spectro 20w-50. It did better then the bombardier 10w-40 the clutch ran good had no problems. I am trying Honda GN4 20w-50 because it was cheaper per gallon. It runs okay, the clutch feels a little bit rougher, but it works. I think from now on after this last change I am going to stick with Spectro 20w-50 for summer and 10w-40 for winter. Spectro seemed to be a good oil and it was only 4.99 a quart. Much better then $6.88 (bombardier) and $7.00 for HP4 no molly a quart.

 

so can i use sythetic in my new kfx

 

I also run the Spectro. I tried the 20w50 and noticed it was harder to shift into gear so I stuck with the 10w40. It seems to work much smoother for me.