2stroke Oil How Much?

[Guest]

you could try mixing some of each oil together in a little pot and you will notice some go slimey, others won't mix... some mix perfectly. Run out of what you have and then clean and drain the carb... better to be safe than sorry.

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Edited March 21, 2006 by Thomas_trial

[steve shakeshaft]

I really don't care what you think. A person asks advice and all he gets is unsubstantiated bullsh*t.

Fact- All base oil stock is sold on the spot market by oil majors. It is classified according to internationally agreed chemical and physical standards.

Fact- Additive packages are made by a small number of companies. These are well understood and none of them are "magic". They all use the same chamistry. Again, to internationally recognised standards.

Fact- Most oil except for some of the "big names" are blended from generic base stock bought on the spot market (with additive packages bought in) and packed by a small number of contract blenders. Europe's largest is FUCHS in Stoke on Trent. You'll likely know of them as Silkolene and Century Oils.

Fact- ALL engine oils are blended and packed to inernationally agreed ISO, JASC, API, SAE standards.

Fact- There's more bull on the internet about lube oils than just about anything else. Quite why, I'm not sure.

Fact- I've been a professional mechanical engineer for more than 30 years specialising in machinery failure modes and I have NEVER EVER seen a rolling bearing fail due to incorrect oil grade or problems from mixing oils.

Get over it, you've read stuff on the web and been told stuff by folk who know no different and you believe it.

I know better, it's my work and it is my full time business.

I hope what I say helps somebody out there, whether you are offended by somebody who knows the truth matters to me not one tiny little bit. Get over it.

Regards.

Steve.

[Guest]

I hope what I say helps somebody out there, whether you are offended by somebody who knows the truth matters to me not one tiny little bit.  Get over it.

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Thanks for the advise To you information I have no problem with you or any one to know more about a subject than me, but I don't like when people don't treat each other with respect.

Peace

[steve shakeshaft]

Thank you Thomas. I do not know you, but you have my respect, believe me. As do all here.

It's only the internet FFS, I learn something new every day, sometimes on the web, sometimes from elsewhere. But the day you top learning is the day you stop breathing. For sure.

Regards

Steve.

[steve shakeshaft]

It seems I have offended Thomas. I sincerely apologise. Sorry.

Regards.

Steve.

[Guest]

Apology accepted.

Regards

Thomas

[gasgas]

Steve, blending bio synthetic oils(like outboard stuff) with minerals also cause no treat?

Or Bio minerals / with synthetics......

I am always a little reluctant to mix different brands(because of all the Bull i have learned via the www) allthough i never really empty my gastank when pouring in a other brand/mix

O and btw Steve, i asked the same on an other topic but is it true that minerals and synthetics burn under differents temperatures.

This to switch to a mineral when riding low throttle for long times... hence carbon built up at the head.

Edited March 22, 2006 by gasgas

[steve shakeshaft]

GG, By mixing oils, I presume you are referring to the residual in your fuel tank before switching to another brand or type? Go ahead.

If you want to mix brands I can't really see why you would want to purposely do it, but providing you mix the same API spec oils I can't see a problem. Ofcourse you are asking for trouble purposely mixing a 2 stroke oil and a gear oil (say), but that'd be daft to do anyway and I cannot see why you'd want to.

A great many of the "synthetic" base oil stocks used in motor oils are not "actually" "true" synthetic oils at all. Many, (in fact I'll go out on a limb here and risk being shot down) most in fact, of the engine oils sold as "Synthetic Oil" are actually highly refined and treated mineral base oils. Nothing at all wrong in this ofcourse. But it does mean that oil based on the "hole in the ground Black stuff" gets grouped in the same manner as Poly Alpha Olefin, Silicone base or Poly Ethylene Glycol stock, which ARE true "Synthetics" (IE do not generally come out of a hole in the ground as black stuff!). These all get lumped together in the eyes of the marketing people as "Synthetics". And it is the marketing folk that decide what it is you read on the bottle that is on the shelf. The Engineers and the Chemists only get a look in where it says something like API SL 20w/50 or a proprietary standard like VW 505.01. Ofcourse, this isn't sexy like "Synthetic" so the marketing folk would rather you didn't read it up front.

My honest advice to you, is use what the maker recommends in the way of an industry specification API... (API SL 20W/50 etc) or a makers standard (eg VW505.01 etc), etc... And you'll be OK. For example, here is a brief guide to API standards for motor oils (Petrol and Diesel).

API SPEC GUIDE

You may notice that the "S" word doesn't appear up front in the text. But I can buy API SJ mineral and API SJ synthetic oil in Halfords. Confused? I bet.

Regarding coking of your engine's combustion chamber, perhaps one additive package is a little better in one way than another, but not in others? Perhaps some trials you ride require more throttle than another? Perhaps some trials you ride a lot in one gear? Or wait around a lot ticking over? I don't know. If what you are doing works for you, that's great, but don't get hung up on brands or "synth" v "dino". I honestly hope that helps. But there are always more questions than answers on this subject.

[gasgas]

GG, By mixing oils, I presume you are referring to the residual in your fuel tank before switching to another brand or type?  Go ahead.

If you want to mix brands I can't really see why you would want to purposely do it, but providing you mix the same API spec oils I can't see a problem.  Ofcourse you are asking for trouble purposely mixing a 2 stroke oil and a gear oil (say), but that'd be daft to do anyway and I cannot see why you'd want to.

Steve, the mixing only occure in the gastank, and sometimes happens when my common brand is sold out. And sometimes i just like to try something different. Like using a outboard 2stroke oil for example, to see how it smokes etc.

Not mixing gear/2stroke oils here, I am not daft

Thanks for yr quick reply.

I feel that a lot of shops won't like yr honesty

[steve shakeshaft]

GG, you're more than welcome. I know very little about trials riding, but I do know a bit about lubrication.

Regarding when your favourite brand oil isn't available, just enjoy the ride and don't worry. You've far more to worry about trying to keep your feet up! That's what I do and it works OK for me.

[millzy]

i am trying to find a good semi synthetic premix oil i use semi as (thisdoes not happen as much on the bigger cc bikes but still happens) the semi does not clog the bike up as much so ur packin last long and cab works better this is not BULL but what i have found out though experience but u can take or leave the advise.