What oil to use?
Apr 25, 2002 | 05:30 PM
#11
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Joined: Nov 2001
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killerkx327;
Your statement is simply untrue.
By adding more oil to the gas you are effectively LEANING out the gas to air ratio.
You have also made the mixture more VISCOUS, which will ALSO affect the amount of air pulled in with the mixture.
Why? Because you have replaced FUEL with OIL.
You will be running a richer OIL mixture, but a LEANER FUEL mixture.
As far as inexperience tuners go, I think you need to do a little research yourself. Go to some of the technical sites, and state what you have just said, and you will get laughed off the board!
Your statement is simply untrue.
By adding more oil to the gas you are effectively LEANING out the gas to air ratio.
You have also made the mixture more VISCOUS, which will ALSO affect the amount of air pulled in with the mixture.
Why? Because you have replaced FUEL with OIL.
You will be running a richer OIL mixture, but a LEANER FUEL mixture.
As far as inexperience tuners go, I think you need to do a little research yourself. Go to some of the technical sites, and state what you have just said, and you will get laughed off the board!
Apr 25, 2002 | 06:34 PM
#13
Pro Rider
Joined: Mar 2002
Posts: 519
Likes: 1
<< killerkx327;
Your statement is simply untrue.
By adding more oil to the gas you are effectively LEANING out the gas to air ratio.
You have also made the mixture more VISCOUS, which will ALSO affect the amount of air pulled in with the mixture.
Why? Because you have replaced FUEL with OIL.
You will be running a richer OIL mixture, but a LEANER FUEL mixture.
As far as inexperience tuners go, I think you need to do a little research yourself. Go to some of the technical sites, and state what you have just said, and you will get laughed off the board! >>
why don't you do the research and prove me wrong.when you add more oil to your fuel you will make more power.it is a proven fact.now prove me wrong.
Apr 25, 2002 | 07:18 PM
#14
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whoa guys, I didn't intend to start a flame here. It seems as if every post beerock69 enters on this board, gets turned into a flame! and he didn't really say anything. Ok, I guess I'll be buying some Castrol GTX than.
Apr 25, 2002 | 08:32 PM
#15
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Joined: Jul 2000
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http://pocketbike.com/techfaq.htm#fuel
Under the fuel listing, it DOES say that oil mixing can affect whether or not you foul a plug. now before some goes off on me saying that its a pocketbike site, its still a 2-stroke motor so it should be the same
also... this is from a two-stroke faq. ( word for word )
So long as you use an oil designed for todays modern 2 cycle air cooled equipment, you shouldn't have an oil related failure.
The rest is up to you. Making the proper fuel/oil mix is critical. Most oils today are designed for a 50-1 ratio. One gallon of
gas is 128 fluid ozs. That will require 2.56 ozs of two cycle oil, rounding off to 2.5 is a safe bet. Thats not much oil in a gallon
of gas so you can maybe better understand the need to use the proper quality oil. Too much will cause plug fouling, carbon
build up and partially burned oil that burns into the piston and cylinder causing the engine to overheat. Overheating is one of
the major causes of failures in two cycle engines.
Too light on the oil mix will not lubricated properly and again cause, overheating. Overheating causes metal to expand and
then you have a seizure.
looks like 2fun had it right. AND i saved both of yall the trouble of looking it up!!!!! [img]i/expressions/face-icon-small-smile.gif[/img]
Under the fuel listing, it DOES say that oil mixing can affect whether or not you foul a plug. now before some goes off on me saying that its a pocketbike site, its still a 2-stroke motor so it should be the same
also... this is from a two-stroke faq. ( word for word )
So long as you use an oil designed for todays modern 2 cycle air cooled equipment, you shouldn't have an oil related failure.
The rest is up to you. Making the proper fuel/oil mix is critical. Most oils today are designed for a 50-1 ratio. One gallon of
gas is 128 fluid ozs. That will require 2.56 ozs of two cycle oil, rounding off to 2.5 is a safe bet. Thats not much oil in a gallon
of gas so you can maybe better understand the need to use the proper quality oil. Too much will cause plug fouling, carbon
build up and partially burned oil that burns into the piston and cylinder causing the engine to overheat. Overheating is one of
the major causes of failures in two cycle engines.
Too light on the oil mix will not lubricated properly and again cause, overheating. Overheating causes metal to expand and
then you have a seizure.
looks like 2fun had it right. AND i saved both of yall the trouble of looking it up!!!!! [img]i/expressions/face-icon-small-smile.gif[/img]
Apr 26, 2002 | 12:16 AM
#16
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Posts: 1,631
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Thanks razormazer.[img]i/expressions/face-icon-small-wink.gif[/img]
If he doesn't believe you either, he can go here:
http://www.mxamericaonline.com/tech%...e/oildrool.htm
Or just read this:
The worst-case scenario of not running enough oil in your gas mixture can be engine seizure or crankshaft failure. If you run too much oil in your mixture for your application, your engine can run too hot, because the excessive oil acts like an insulator in the combustion chamber and will not allow the engine to transfer the heat and cool itself down. When you increase the mix ratio (reduce the a mount of oil mixed in the gas), this also makes your engine run richer. You will have “more” gas and “less” oil going through your carburetor at any given time. Any time the oil ratio is changed, the carburetor settings need to be checked and adjusted, if necessary. The same holds true when you decrease the mix ratio (increase the amount of oil mixed in the gas). Increasing the amount of oil will make your engine run leaner and, if you add too much oil, you could run the risk of engine damage if you don’t adjust the carburetor settings accordingly to adjust for the leaner mixture. The selected oil ratio should be determined by the oil migration time through your 2-cycle engine for your particular application.
If he doesn't believe you either, he can go here:
http://www.mxamericaonline.com/tech%...e/oildrool.htm
Or just read this:
The worst-case scenario of not running enough oil in your gas mixture can be engine seizure or crankshaft failure. If you run too much oil in your mixture for your application, your engine can run too hot, because the excessive oil acts like an insulator in the combustion chamber and will not allow the engine to transfer the heat and cool itself down. When you increase the mix ratio (reduce the a mount of oil mixed in the gas), this also makes your engine run richer. You will have “more” gas and “less” oil going through your carburetor at any given time. Any time the oil ratio is changed, the carburetor settings need to be checked and adjusted, if necessary. The same holds true when you decrease the mix ratio (increase the amount of oil mixed in the gas). Increasing the amount of oil will make your engine run leaner and, if you add too much oil, you could run the risk of engine damage if you don’t adjust the carburetor settings accordingly to adjust for the leaner mixture. The selected oil ratio should be determined by the oil migration time through your 2-cycle engine for your particular application.
