If one takes the catalytic converter off is it possible to burn leaded gas? I hear that the reason you can't on modern vehicles is because of the cat. Or is there more to it than that? Just curious...
leaded gas?
- Thread starter ZRotheohv
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were you getting leaded gas from?
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- #4
oh i'm not but if i'm ever faced with leaded gas only, it'd be nice to know if it would be safe to fill 'er up
Assuming that you have a 60, I would assume that it would be completely fine.
Would you reap any benefits from the lead?
Would you reap any benefits from the lead?
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- #6
i assume there would be no benefits to the lead (right?), but if it was the only choice i guess a benefit would be being able to fill up!
The reason why lead was added, I believe, was to act as a lubricant. I don't know if that property would be beneficial in an unleaded engine.
I think it also raised the octane rating.
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This is a very good question. I had the same question before a trip to Belize where they have mostly leaded fuel. Some experts on a Jeep board posted the following answers. I assume the answers are correct for Toyota engines as well:
http://nsjc.proboards38.com/index.cgi?action=display&board=tech&thread=1128622179&page=1
http://nsjc.proboards38.com/index.cgi?action=display&board=tech&thread=1128622179&page=1
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- #10
so you had no problems running their leaded fuel without a cat?
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No problems. I just filled up once with leaded gas, though, the other times I found unleaded.
Next time I will go with a diesel, though. Sooooo much nicer.
Don't certain types of aircraft with props still use leaded gas?
Next time I will go with a diesel, though. Sooooo much nicer.
Don't certain types of aircraft with props still use leaded gas?
ZRotheohv said:
Herbert said:
this is a hijack....
once I ran out of gas in BFE. I was in a Mazda 2200 and had a 5 gallon can of mixed 2 stroke chainsaw gas. I used the mixed gas, that truck ran better than It ever had, smooth, quite, etc.... not sure how bad it gunked up the engine, but It ran great.
beaufort-fj60 said:
That is crazy. I believe it, but it is still crazy.
Was the engine on it's way out? I can see how the oil would help the old rings, but what else good, other than lubricating valve seals, could it do?
\GLTHFJ60 said:
not sure what was lubed and/or gunked? but that engine lasted another 60,000 miles after using the mixed gas.
Can you still buy leaded petrol in the US? Its been off the market here for years and even the lead replacement petrol has gone.
The lubricative effects of leaded fuel was to allow a thin build up on the valves to cushion them as they closed.
Once they put hardened valves in engines,leaded was unneeded.
Running leaded with a cat just destroys the cat.
Leaded fuel is also blamed on stunting brain growth in children which is why it was taken off the market along with leaded paint.
The lubricative effects of leaded fuel was to allow a thin build up on the valves to cushion them as they closed.
Once they put hardened valves in engines,leaded was unneeded.
Running leaded with a cat just destroys the cat.
Leaded fuel is also blamed on stunting brain growth in children which is why it was taken off the market along with leaded paint.
In theory, the oil would burn and leave intense amounts of carbon deposits on the valves and piston heads and whatnot. I do agree however that as an emergency method, it's alright and probably won't have any affects on your motor.
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- #18
Is having the little flapper thing in the filler pipe that only allows the unleaded pump tip to go in required to pass inspections? I heard that sometimes "they" check that.
I've never thought of that before. How is the leaded tip different?
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- #20
I think it's bigger. Like a diesel tip. But my gas can filler tube is a big tip so that's why I wanted to take it out. Maybe make it replacable...
