synth or semi


13 replies to this topic
  • blooozboy

Posted October 20, 2005 - 02:42 PM

#1

Hi Guys
Well what is he verdict for a WR 426 2002 I am using good quality Semi synth engine oil but should I be using Fully synth I do not ride hard but obviously want what is best for the motor,Your oppinions would be appreciated.

  • clark4131

Posted October 20, 2005 - 02:51 PM

#2

With religious changing, you'll see no noticeable difference unless you break out your electron microscope and measure the wear in angstroms...SC

  • byggd

Posted October 20, 2005 - 03:26 PM

#3

I run rotilla full synth. Good quality, range, and it's about $13 a gallon :banghead:

  • Joe Reitman

Posted October 20, 2005 - 05:35 PM

#4

I run rotilla full synth. Good quality, range, and it's about $13 a gallon :banghead:


Same here - the SHell Rotella T is engineered for ultra high compression turbo'd diesel applications- very very heat and breakdown resistant. It is all I will run in my 20 psi 3 hp per ci turbo car as well. :banghead:

  • bg10459

Posted October 20, 2005 - 06:11 PM

#5

Great, another oil thread. Well then, since we're on the topic, is straight weight oil less susceptible to breakdown than multi weight oil? A post by grayracer suggests that the additives that make a multi weight oil break down very quickly in a wet clutch application. He seems to have the answers, but declines to divulge his choice (unless I missed something).

  • tony1970

Posted October 20, 2005 - 08:53 PM

#6

The way I look at it if Yamaha thought you could safely run full synth in their bikes they would sell their own brand. I run semi now after I broke the bike in. From what I have read some people run full synth with no problems, the choice is up to you.

  • tshe1

Posted October 21, 2005 - 05:18 AM

#7

I run rotilla full synth. Good quality, range, and it's about $13 a gallon :banghead:

is it 15w40 or 15w50?

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  • ETP

Posted October 21, 2005 - 05:42 AM

#8

I switched from multi-weight to semi-synth because my clutch was coming out of adjustment on long slow continuous uphill climbs or boulder fields. I think its helping, but the clutch adjust still changes when worked hard.

  • byggd

Posted October 21, 2005 - 05:51 AM

#9

is it 15w40 or 15w50?

I'd have to look at the bottle but if memory serves it's 5w40

  • Joe Reitman

Posted October 21, 2005 - 11:13 AM

#10

I'd have to look at the bottle but if memory serves it's 5w40


I am pretty sure that is right

  • Matty05

Posted October 21, 2005 - 03:42 PM

#11

5w40 is too thin for me!

I have to use 15w50 because it is about constant 90's here with 100% humidity all the time.
I use Motul semi synthetic 5100 bucause it costs me $50 Australian for 4 litres instead of $100 Australian for the fully synthetic.

I cannot justify the extra $50 when I have to look after 2 WR's and change the oil every 500 kms.

  • crooks420

Posted October 21, 2005 - 05:53 PM

#12

Hey CLARK4131, will my SEM work?? Or do I need to get me a TEM??

Jesse

  • clark4131

Posted October 21, 2005 - 07:58 PM

#13

Hey CLARK4131, will my SEM work?? Or do I need to get me a TEM??


Call up Lawrence-Livermore or JPL, they'll know for sure :banghead: ...SC

  • joshb

Posted October 21, 2005 - 08:07 PM

#14

I ordered a couple synthetic castrols to try out. Right now I run the $3 maxima premium or castrol $3 stuff. Is there any difference between this $3 stuff and the pennzoil from shucks?




 
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