running lean (I think)
10-15-2003, 08:39 PM
#11
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Re:running lean (I think)
Originally Posted by crx88Si
don't use ---- gas.
Are you thinking you are running lean because of the intake and exhaust you have? It takes a whole lot of motor work for a N/A Honda to require more fuel. If you are running lean, your fuel pump might be shot. Try spending an extra $2 at the gas pump next time and see what happens.
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10-16-2003, 05:21 PM
#14
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Re:running lean (I think)
Same here, but my beater gets 91!! 
One thing I just thought of, is the car smoking at all? I was thinking matbe it could be a head gasket. My friend has an Accord with a blown head gasket and every once in a while he vanishes in a huge cloud of white smoke. His car pings like a mother ******. Check ther oil for water and the water for oil. Ya never know. Just a thought.......
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One thing I just thought of, is the car smoking at all? I was thinking matbe it could be a head gasket. My friend has an Accord with a blown head gasket and every once in a while he vanishes in a huge cloud of white smoke. His car pings like a mother ******. Check ther oil for water and the water for oil. Ya never know. Just a thought.......
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10-16-2003, 11:12 PM
#15
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Re:running lean (I think)
my car doesn't ping at all i don't think and it's not a head gasket because i just changed the oil. another problem that i forgot to menchon is it idles very low when it's warm like 300 rpm i can't beleive it can even run that low. my car does spit out black smoke when i'm driving it hard but i think that is normal
10-16-2003, 11:17 PM
#16
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Re:running lean (I think)
Well, black would be gas so you are not running lean.
The head gasket doesn't have to leak water into the oil. It can leak anywhere. You don't seem to hear anything that you don't want to hear.
You said your car sounded like a machine gun earlier. Now it doesn't? WTF? You seem to rule out things too easy. It's always the thing you don't expect it to be. All well, good luck to you.
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The head gasket doesn't have to leak water into the oil. It can leak anywhere. You don't seem to hear anything that you don't want to hear.
You said your car sounded like a machine gun earlier. Now it doesn't? WTF? You seem to rule out things too easy. It's always the thing you don't expect it to be. All well, good luck to you.
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10-17-2003, 09:54 AM
#18
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Re:running lean (I think)
Originally Posted by Dr.Boost
Same here, but my beater gets 91!!
One thing I just thought of, is the car smoking at all? I was thinking matbe it could be a head gasket. My friend has an Accord with a blown head gasket and every once in a while he vanishes in a huge cloud of white smoke. His car pings like a mother ******. Check ther oil for water and the water for oil. Ya never know. Just a thought.......
One thing I just thought of, is the car smoking at all? I was thinking matbe it could be a head gasket. My friend has an Accord with a blown head gasket and every once in a while he vanishes in a huge cloud of white smoke. His car pings like a mother ******. Check ther oil for water and the water for oil. Ya never know. Just a thought.......
10-17-2003, 05:45 PM
#19
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Re:running lean (I think)
Ok, sure. You go ahead and put 87 octane in your turbocharged motor and blow the ---- out of it. I'll just run mine like it should be ran buddy. On a brand new Civic from the factory you could get away with running 87 octane, but we aren't talking about a brand new motor here. We are talking about a very used motor which isn't in the best condition.
Are you seriously going to believe a Honda service guy? The major selling point on a Honda is economy. Of course he is going to tell you you can run cheap *** gas and get 50+ MPG without any problems.
I also tried to give him other suggestions, but he doesn't want to hear it. I didn't tell ALL Civic owners to run high octane gas, but obviously this guy has a problem and should consider at least trying a higher octane gas to see if it fixes his problem. It seems like he isn't going to go changing the rings or rebuilding the motor anytime soon.
For you to say that running premium gas is bad for your motor is ignorant. That's like saying changing the oil is bad for the motor. Whatever, I don't want to argue about this. You have "heard" all you need to know from the Honda service guy.
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On a brand new Civic from the factory you could get away with running 87 octane, but we aren't talking about a brand new motor here. We are talking about a very used motor which isn't in the best condition.Are you seriously going to believe a Honda service guy? The major selling point on a Honda is economy. Of course he is going to tell you you can run cheap *** gas and get 50+ MPG without any problems.
I also tried to give him other suggestions, but he doesn't want to hear it. I didn't tell ALL Civic owners to run high octane gas, but obviously this guy has a problem and should consider at least trying a higher octane gas to see if it fixes his problem. It seems like he isn't going to go changing the rings or rebuilding the motor anytime soon.
For you to say that running premium gas is bad for your motor is ignorant. That's like saying changing the oil is bad for the motor. Whatever, I don't want to argue about this. You have "heard" all you need to know from the Honda service guy.
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10-17-2003, 10:02 PM
#20
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Re:running lean (I think)
EDITED for tone:"****************************" ...I don't have a turbocharged motor yet, and neither does the original poster. It isn't what I "HEARD" from a service zombie. Try a search on the internet for octane and carbon buildup and see what you find. This was in one of the first hits I found. See if maybe you can follow the logic...
"............Using a higher octane then necessary is not only a waste of cash but can cause build up deposits that your engine can't burn. Which will lead to needed to run this octane to keep it from dieseling (running after shutting off the ignition)in the first place. (Deposits form causing hot spots, and pre-igniting the fuel before the Spark plug is suppose to.)Called detonation or pinging.
Remember Higher octane gas actually burns SLOWER or cooler then lower octane fuels. Using this will cause the fuel that is not being burned to build up in your heads,valves,pistons, etc...... So the trick is not what you think is best,but actually matching the octane to what your timing, ignition, and engine can actually burn in the compression stroke.
So instead of doing your baby a favor by spending the extra cash on her, you might actually be causing more problems down the road."
OK, actually to say it burns "slower" isn't entirely correct, it just takes more heat to ignite it. Semantics. I'm no chemist, but you are refuting this based on what?
This is from the Federal Trade Commission http://www.ftc.gov/bcp/conline/pubs/autos/octane.htm and basically is the same as what I posted earlier...
"Should you ever switch to a higher octane gasoline?
A few car engines may knock or ping - even if you use the recommended octane. If this happens, try switching to the next highest octane grade. In many cases, switching to the mid-grade or premium-grade gasoline will eliminate the knock. If the knocking or pinging continues after one or two fill-ups, you may need a tune-up or some other repair. After that work is done, go back to the lowest octane grade at which your engine runs without knocking.
Is knocking harmful?
Occasional light knocking or pinging won't harm your engine, and doesn't indicate a need for higher octane. But don't ignore severe knocking. A heavy or persistent knock can lead to engine damage."
Here is another hit...
"Simply adding higher octane gasoline can keep your car from knocking, but it may mask other problems like an incorrect fuel/air ratio, ignition system trouble, or too much boost. Ideally, the car's state of tune should work in conjunction with the proper fuel, rather than using high octane gas as a band-aid to cover up some other problem. It's often cheaper in the long run to determine the root cause of knock instead of switching to a more expensive high-octane fuel. On the other hand, tuning an engine for maximum power will often demand the added knock resistance of higher octane gas. Only by understanding how and why knock occurs, and the interaction between ignition, compression, fuel delivery, and the fuel itself can you reach the state of optimum performance."
Here is another...
"Gasoline Factors That Matter
The quality of gasoline and the additive package usually affect the rate of engine wear more than the octane rating. Basically what this means is that it matters more where you buy your gas than which grade you purchase.
Regular Unleaded Gasoline
The recommended gasoline for most cars is regular 87 octane. One common misconception is that higher octane gasoline contains more cleaning additives than lower octane gas. All octane grades of all brands of gasoline contain engine cleaning detergent additives to protect against engine deposit build-up. In fact, using a gasoline with too high of an octane rating may cause damage to the emissions system."
I'm sure nobody wants to see this post grow any more, so if you feel like it, do some research on your own before you make blanket statements to people with NA engines that they should just add premium instead fo fixing their cars. If you read my first post, I said he might need to use a higher octane as well as retarding the timing. But I also stated that it would be better to fix the actual *problem* that is requiring him to run higher octane to prevent knocking. When you call 87 "----" to use your terms, it sounds like octane is a fix-all that everyone should use if they love their car and it sounds like you have your head up your butt and need to reevaluate the facts. Do so, then call me ignorant. Are you a gasoline salesman or something? Hope this doesn't make you mad, but please think about it, unless you have "heard" all you need to from your imaginary friends :P.
"............Using a higher octane then necessary is not only a waste of cash but can cause build up deposits that your engine can't burn. Which will lead to needed to run this octane to keep it from dieseling (running after shutting off the ignition)in the first place. (Deposits form causing hot spots, and pre-igniting the fuel before the Spark plug is suppose to.)Called detonation or pinging.
Remember Higher octane gas actually burns SLOWER or cooler then lower octane fuels. Using this will cause the fuel that is not being burned to build up in your heads,valves,pistons, etc...... So the trick is not what you think is best,but actually matching the octane to what your timing, ignition, and engine can actually burn in the compression stroke.
So instead of doing your baby a favor by spending the extra cash on her, you might actually be causing more problems down the road."
OK, actually to say it burns "slower" isn't entirely correct, it just takes more heat to ignite it. Semantics. I'm no chemist, but you are refuting this based on what?
This is from the Federal Trade Commission http://www.ftc.gov/bcp/conline/pubs/autos/octane.htm and basically is the same as what I posted earlier...
"Should you ever switch to a higher octane gasoline?
A few car engines may knock or ping - even if you use the recommended octane. If this happens, try switching to the next highest octane grade. In many cases, switching to the mid-grade or premium-grade gasoline will eliminate the knock. If the knocking or pinging continues after one or two fill-ups, you may need a tune-up or some other repair. After that work is done, go back to the lowest octane grade at which your engine runs without knocking.
Is knocking harmful?
Occasional light knocking or pinging won't harm your engine, and doesn't indicate a need for higher octane. But don't ignore severe knocking. A heavy or persistent knock can lead to engine damage."
Here is another hit...
"Simply adding higher octane gasoline can keep your car from knocking, but it may mask other problems like an incorrect fuel/air ratio, ignition system trouble, or too much boost. Ideally, the car's state of tune should work in conjunction with the proper fuel, rather than using high octane gas as a band-aid to cover up some other problem. It's often cheaper in the long run to determine the root cause of knock instead of switching to a more expensive high-octane fuel. On the other hand, tuning an engine for maximum power will often demand the added knock resistance of higher octane gas. Only by understanding how and why knock occurs, and the interaction between ignition, compression, fuel delivery, and the fuel itself can you reach the state of optimum performance."
Here is another...
"Gasoline Factors That Matter
The quality of gasoline and the additive package usually affect the rate of engine wear more than the octane rating. Basically what this means is that it matters more where you buy your gas than which grade you purchase.
Regular Unleaded Gasoline
The recommended gasoline for most cars is regular 87 octane. One common misconception is that higher octane gasoline contains more cleaning additives than lower octane gas. All octane grades of all brands of gasoline contain engine cleaning detergent additives to protect against engine deposit build-up. In fact, using a gasoline with too high of an octane rating may cause damage to the emissions system."
I'm sure nobody wants to see this post grow any more, so if you feel like it, do some research on your own before you make blanket statements to people with NA engines that they should just add premium instead fo fixing their cars. If you read my first post, I said he might need to use a higher octane as well as retarding the timing. But I also stated that it would be better to fix the actual *problem* that is requiring him to run higher octane to prevent knocking. When you call 87 "----" to use your terms, it sounds like octane is a fix-all that everyone should use if they love their car and it sounds like you have your head up your butt and need to reevaluate the facts. Do so, then call me ignorant.
Are you a gasoline salesman or something? Hope this doesn't make you mad, but please think about it, unless you have "heard" all you need to from your imaginary friends :P.
