The good oil

[Waihou Thumper]

I have recently got the 625sxc. I run good quality oil and change the filter every second change. the gasket gets changed too, but it can be used twice at a pinch. I have stuck with a semi synthetic oil and change at 5000km intervals. My last bike, the 640A was changed every 6-7000km dependent on type of use. The motor was strong...I changed the oil as per the book of words.
Imagine a KTM running on Diesel oil, sheesh! I thought it vibrated a bit then, imagine what it will be like with diesel oil in it...
I am gonna have to investigate that one for sure Andy...Thanks for the heads up mate!

[tri boy]

Fookin oil threads

[dino3310]

Fookin oil threads

No that should be: another Fookin oil thread

[yafeetup]

I run full synthic motorex, change oil every 2500km and filter every 5000 thats cause i do quite a bit of hard core and ring its neck off, in the long run oil is cheap. Modern 4 strokes hate dirty air filters its an engine killer, its really easy to carry a pre oiled 1 for a multi day ride, depends on whether your a follow or leader . With an opened up air box cleaning it after 1 really dusty ride isnt unusual.

[gav24]

Hmmm - never heard of the diesel oil thing might give that a go on the next oil change...

I have heard that the straight 30wt is good for bikes that suffer from dragging clutches...
Off topic:- My old 1979 PE250 and the 1978 RM400 and to a lesser amount the 1980 RM125 are all buggers for clutch dragging and creeping forward - a huge pain on the start line, and when stopped and trying to find neutral on a trail ride.
Anyone know anymore about this, as I'd love to solve it....

As for the air filter (when its dirty) I havent cleaned mine in 7000kms since i put the new Uni filter one in - just never seems to get dirty, even with the top of the air box cut away to almost zero - Hmmm... DR650's they even self clean!

[Taz]

As for the air filter (when its dirty) I havent cleaned mine in 7000kms since i put the new Uni filter one in - just never seems to get dirty, even with the top of the air box cut away to almost zero - Hmmm... DR650's they even self clean!

Dirt is probably going straight thru it

[topo]

The comments about changing air filters is quite telling really, My old 640 would self-dust at a moments notice! by the end of last years DB1k (15hrs) it was blocked to the point that i was getting a noticable drop in performance (bald rear tyre by that stage didn't help). My current DRZ400 is really good but i still change it after every dusty ride or as soon as i see any build-up.

On the Oil side of things, the DRZ really likes castrol 4t active - seems to make gear changes nicer I used to run anything i could find in the 640e as long as it was cheap! when i was "giving it a bit" i'd change oil every 1500-2000km with filters every 2nd change.
The GSPD runs really nicely on the delo400, but then again it'd run on raw crude oil in a pinch.

Must go pick the purple monster up sometime soon

[gav24]

Dirt is probably going straight thru it

I know its a worry, aye
I keep checking it after most good rides, only 4 phillips screws, and the bugger is still nice and tacky with oil, and absolutely no crud on it - still looks brand new, even the inside of the airbox is spotless

Is mine a particularly freakish story, or do all DR650s exhibit this spooky phenomenon...

[Padmei]

I did a it of looking around a while back & found this
http://www.bobistheoilguy.com/cms/

Man there are some oil freaks out there.
Keep it going

[Taz]

I know its a worry, aye
I keep checking it after most good rides, only 4 phillips screws, and the bugger is still nice and tacky with oil, and absolutely no crud on it - still looks brand new, even the inside of the airbox is spotless

Is mine a particularly freakish story, or do all DR650s exhibit this spooky phenomenon...

Check that there is a rubber manifold between the carb and the airbox

[dino3310]

heres a good read if you got an hour http://motorcycleinfo.calsci.com/Oils1.html

[dino3310]

this is good http://www.shell.com/home/PlainPageS...xpert_faq.html

couldnt link it right, scroll down to 'Top Five Requested Questions' 1

[Taz]

Shell Oils - Can heavy-duty diesel oil be used in motorcycles?


Motorcycle gasoline engines may not seem in the same league as the big displacement diesel engine under your hood, but they share some of the same lubrication requirements. So yes, in many cases, a premium heavy-duty universal oil capable of serving both diesel and gasoline engines is the best choice for your bike.

Wow even shell agrees......

[warewolf]

There is no one answer, except "change it when it needs it."

Adventure riding - bikes & conditions - is far too diverse. Sometimes the interval needs to be way below the manufacturer's spec, sometimes you can stretch it out.

FWIW I run the 640A on-spec as it is about right and it suits to do a full service at the same time at 5000km. However the DR-Z250 could only do 1000-1500km between changes with filters every 2nd or 3rd. Not a shit-show in hell of getting anywhere near the 6000km recommended interval, even 1500km made me nervous due to the poor state of the oil by that stage. Thrashing it on trail rides didn't help but most of the miles were on road (being thrashed - it's only a 250cc 4t trailie after all). Both those need air filters cleaning after every dusty ride - filter skins are great!

[Waihou Thumper]

Wow even shell agrees......

I guess it is whatever you are comfortable with and what you have previously been using..
Andy - It works for you, cool....I would be tempted to use it, but at what cost? Dunno....What am I saving? A few bucks....
I always look for a bargain, but not on my KTM.... It is out of warranty too...hehe.
I agree with ya though, stick to what is good, what works etc....why change a good thing.