Semi and Fully Synthetic 2 Stroke Oil

Fnatic · World Chat Champion Joined: 11 May 2008 Karma :

Is it alright to mix these? My bike has semi in it from the last owner and I want to use Fully Synthetic. Is it ok to mix?

MarJay · But it's British! Joined: 15 Sep 2003 Karma :

You aren't supposed to, I've heard they can congeal. I've never actually seen it happen though.

My advice to you is to run it until the light comes on, and then fill up with fully synth. Thumbs Up

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Remember kids, bikes aren't like lego. You can't easily take a part from one bike and then fit it to another.

Bikeless · World Chat Champion Joined: 27 Jun 2008 Karma :

I thought you could mix semi and fully but not lower grade mineral oil with either of these,wait for kickstarts reply,he should know.

ms51ves3 · Super Spammer Joined: 07 Jun 2007 Karma :

I wouldn't like to trust my little light to tell me when to fill up with oil.

You could do what I did which was drain the 2 stroke oil out of the tank, fill it back up with your new oil, as it starts to come out of the pipe that connects to your pump, connect it to your pump then bleed the pump (assuming there is a bleed screw on the pump). Once oil starts to come out of there, job done.

I then just made sure the pipes that go to the carbs were still full of oil. I rode the first couple of miles covering the clutch just in case I did it wrong, but I didn't.

cheekythomas · Crazy Courier Joined: 06 Aug 2006 Karma :

You should be able to mix a semi and a fully synthetic... its mineral to fully you shouldnt do as it can turn to a gel.

c_dug · Super Spammer Joined: 04 Sep 2007 Karma :

I used to switch between them all the time Thumbs Up

c_dug
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Fnatic · World Chat Champion Joined: 11 May 2008 Karma :

Cheers guys. It was just because I was running the bike on the sidestand whilst I got my gear on and the light came on.

So I got a bit worried. I fill it up with TTS now.

Thumbs Up

TeddyCanuck · Nova Slayer Joined: 08 Sep 2007 Karma :

I was running Silkolene Comp 2 Injector but Fuchs has stopped commercial distribution to Vancouver Island (meaning i need to buy by the case if i want it).
I switched to PJ1 Silverfire semi-synthetic. Less smoke and for sale at local auto-shop open 7 days a week for 7 pounds per litre.
I had no issues transitioning between the two
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c_dug · Super Spammer Joined: 04 Sep 2007 Karma :

Since this has had a little bump i'll make a point that i left out in my first post.

On my TS50x i mixed all three types of oil all the time (depending on what i had in the bank and what i could ponce from friends) and never had any problems with oil congealing or anything like that, I've heard alot of horror stories about mixing but i had no issues at all.

c_dug
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I am a bellend, I am a man of constant sorrow, I am a gummy bear, I am a rock.