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dlc7101
09-09-2012, 06:36 PM
Hi Guys,
I just purchased a string trimmer that say a mix of 40-1 is needed, I also have a blower that uses a 50-1 mix..My question is if I mistake cans and use the wrong mix in either will it be the end of that machine :confused: I'm thinking that its better to be on the high side of the mix to be safe.
Thanks in advance and please excuse my ignorance on these matters...

Sprinkler Buddy
09-09-2012, 07:12 PM
Personally, I would just run the 50-1 mix in both. It will just cause it to smoke a little if anything. I always run mine a tad richer and have had no problems doing so for many years now.

Hedgemaster
09-09-2012, 07:16 PM
^^^

That's what I had been told.

I have a craftsman handheld blower and a hedge trimmer that are 40:1 and all my commercial equipment is 50:1, so I just started running 50:1 in everything.
No issues in a year of use like that and no real smoke issues.

dlc7101
09-09-2012, 08:07 PM
Id like to Thank everyone for their opinons on this, I figured it would be better using the higher mix. It's better to be safe than sorry right?

bruces
09-09-2012, 08:36 PM
Personally, I would just run the 50-1 mix in both. It will just cause it to smoke a little if anything. I always run mine a tad richer and have had no problems doing so for many years now.

You do know that 50-1 would have less oil in it than 40-1 so it will smoke less .....right ? Anyways with modern oils there should not be a problem running 50-1 in pretty much anything .

Shark1611
09-09-2012, 09:02 PM
You do know that 50-1 would have less oil in it than 40-1 so it will smoke less .....right ? Anyways with modern oils there should not be a problem running 50-1 in pretty much anything .

I use Amsoil synthetic and love it. 8 oz per 5 gallons. check out there website. good stuff.

mark123
09-09-2012, 09:28 PM
You do know that 50-1 would have less oil in it than 40-1 ...
Yeah, the big number is the quantity of gasoline, the small number is the quantity of oil.

wandfsmall
09-10-2012, 12:28 AM
it partly depends on your oil mixes, in the higher quality stuff the oil is a delivery method not the main lubricant. However 40:1 is the higher oil ratio.

CHEESE2009
09-10-2012, 05:43 AM
For every 5 liters of gasoline, put in 20ml of oil.

:)

Steve
09-10-2012, 02:28 PM
in the higher quality stuff the oil is a delivery method not the main lubricant.

Can you explain that more?

wandfsmall
09-10-2012, 08:24 PM
Can you explain that more?

In a synthetic oil the "additives" are what lubricate the engines. This is how they have the oil mix working at the 50:1 ratio. I wish I was enough of a chemist to tell you what additives that they use. I have however seen the tests that show that it works. You will also find a big difference in the oils in tests as they are designed for different engines, for example FD is the only oil approved for use in trimmers, blowers, and chainsaws.

Another thing to note you only have 1 recognized testing facility and no equivalents so they are either JASO certified or not JASO certified.

Steve
09-11-2012, 10:29 AM
Very interesting! I'll have to look into this more.

SECTLANDSCAPING
09-11-2012, 12:00 PM
I always said to much oil is better then to little.

If your using synthetic or even just a higher quality oil 50.1 is fine. With the cheaper brands its better to be safe and run 40.1, 45.1.

brian'slawncare
09-11-2012, 09:18 PM
I would run it a little rich. But not too rich, you'll end up with a gummy card over time...

I always use stihl oil mix. It isn't that much more expensive and it keeps my warranty going. Plus, I run all stihl, so I would assume it is made for the ratio of stihl machines. I should probably check that out