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- Welcome back everybody.
Dave, we received a question under one of our videos.
Somebody was asking me if they still have to mix
the fuel in there for their older chainsaws at 32:1,
like it was like 30, 40 years ago.
- Right.
Well, it's kind of funny you say that,
I have a an older Mitsubishi T110 trimmer
and it actually says on the cap, mix 20:1.
- [Don] Yeah. That's an insane amount.
What do you think about that, Dave?
Should you still keep doing that now?
- Well, I mean, I don't know.
I guess for me, I would err on the side of caution
but I also know that maybe this is something
that we can discuss here because (indistinct)...
- [Don] Exactly.
- Your brain on that because...
- [Don] Yeah.
- I know that the quality of oil maybe 40 or 50 years ago
when that trimmer or an old chainsaw was made
is a lot different than the kind of oil
they make and use today. - Exactly.
- Right. And I guess...
I don't know, if that 20:1,
is that because the machine has lesser tolerances
or if it wasn't machined the same way,
like the piston and cylinder doesn't,
and so it needs more lubrication.
I'm not sure.
- Okay Dave, so before I continue here,
is the simple answer is,
you don't have to keep mixing your gas,
the 25:1, 32:1 or 20:1. - Okay.
- If you're using the two-cycle oil, okay?
There's a huge difference
between this oil. - Right.
- And there's a very old can of oil
that I have here sitting in the shop as a showpiece.
This one required mixing your gas at 32:1.
And as you can see here, it's an SAE 40 oil,
which is a thick oil. - Yeah.
- But this is basically a four-cycle oil, Dave.
- Okay. - Okay.
This is really old. - Yeah.
- I'm gonna guess 30, 40 years.
- It's a collector's item.
- It is, yeah. The oil is still in it
and I've actually made a video on this oil before,
'cause I had it quite a few cans.
- Yeah. - And I actually cracked
one open in the video. - Oh, cool.
- So I'll put the link to that below this one.
- Yeah. So what really are the differences
between these two oils, Don?
- [Don] Okay. So this one here,
which is the oil that we use now
is basically a two-cycle oil formulated
to be used that 50:1. - Okay.
- [Don] This oil here by the way, is made by Castrol.
It's a two-stroke oil.
Now, you have to remember that today's oils
like you mentioned earlier are much better than these ones.
These ones are specifically designed
for two-cycle high revving engines.
- Right. - As you can see here
and I showed it just earlier here, it's SAE 40,
basically it's a four cycle-oil.
- [Dave] Right.
- [Don] That you can use in your gas.
- [Dave] So it dissolves maybe easier
than the four stroke oil.
- [Don] Exactly.
So basically you would have to use a lot more of this oil
to get the same benefits as this one.
- And is that because it doesn't dissolve as well
or it doesn't mix through?
- [Don] It'll mix really, really well with the gas.
- Okay. - Both of these oils
mix really good in the gas. - Okay.
- [Don] Because I've actually tried this
in the gas before. - Right.
- [Don] The only thing is the properties in the oil.
Like I said, this one is specifically designed
for two-cycle or two-cycle engines.
- Right. - This one is also
for two-cycle engines but it could have also
been used in four-cycle engines.
- Wow, okay. So it's just not designated...
- Exactly. - As a specific oil.
- [Don] The ingredients in this oil are much different
than this one. - Okay.
- So basically that's why you can get away
with using less of the new oil nowadays
than the old oil. - Okay.
- [Don] Because you get the same benefits with less.
- Right, so I guess, okay so...
- And I, sorry. - Sorry.
- [Don] And it's also,
this oil here will also be less severe
on the environment. - Okay.
- [Don] 'Cause you're putting less into it in your gas.
- And it was probably designed for emissions reasons.
- [Don] Absolutely.
Like, you know, some (indistinct),
it'll say on them a 100:1 mix. - Yeah.
- [Don] If you have a two-cycle engine.
- Yeah. - So again,
that's for environmental purposes
- Less oil. - Less oil.
- And you still get enough lubrication.
- Exactly. - Okay.
So let me ask you this then, there's...
Like on saws that I've rebuilt in the past aftermarket kits.
- [Don] Yeah.
- You have always told me to run.
So first of all, you always tell them you run 45:1.
- Yeah. - With this stuff.
Just extra protection. - Yes.
- And then sometimes you've told me in the past,
for example, I had a Husky 50 that I rebuilt and you said,
you know, it's an aftermarket kit,
the tolerances aren't as awesome
as they are from the factory. - Yes.
- Run it 40:1. - Absolutely.
- Is that just erring on the side of caution or...
- [Don] Yeah, it's erring on the side of caution
with these aftermarket kits because the quality
of the materials, the metals,
are not as good as OEM. - Right.
- [Don] So if you add a bit extra oil.
- Right. - To those aftermarket kits
in your chainsaw. - Right.
- [Don] It will help them to last longer.
- Okay.
- So what do you think about that, Dave?
Does that make sense?
- That makes total sense.
I have a Pioneer,
well, it's not even a Pioneer,
it's a Partner 7,000 chainsaw.
Remember the one you sold there?
- Yeah, yeah. - In the box of parts.
- Yeah.
- I'm gonna try and rebuild that.
- Absolutely.
- This actually answers a great question,
because I think the mixture of that one
was like 30:1 or something. - Was it? I don't remember.
- I don't remember either,
but I recall it not being 50:1,
so I'll probably still just use your advice and...
- Yeah, go 45:1. - 45:1.
- And I think I'll be safe. - Yeah.
Exactly. So anybody watching today,
if you have an old saw, weed whacker,
anything that's two-stroke
and it says 20, 25, 32 to one mix.
You don't have to mix it that rich with today's oils.
If you were using the old oil here, yeah, definitely.
You'd have to follow the 32:1.
So don't worry about it. - Yeah.
- I would just get the good oil here from Stihl
or whatever brand you buy.
- 45:1. - 45:1 all the time.
- Awesome. - Thanks for watching guys.
Make sure to subscribe to Dave's channel then mine.
- Thanks guys.
- And follow me on social media,
Facebook, Twitter and Instagram.
And have a great day. - Take care.
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