yzrider273

i found a bottle of that CD2 lead sub. in my garage the other day and was considering running it in my 4runner
ive never ran it before and never had any friends that have ran it
it says its safe for all engines and cat converters etc i just dont want to put it in my gas and have it screw up something
leme know what you guys think

mt_goat

Why risk it?

tj884Rdlx

why would you want that? no cars made after 1980 require leaded gas. lead was added to gas as a lubricant, but not needed in our trucks.

you want to add something for cleaning fuel inj, i can only recommend Techron.

sb5walker

Another worthy product is Red Line's SI-1 Complete Fuel System Cleaner. It's about the only one that still contains a good percentage of polyether amine (PEA) the super effective injector cleaner invented by Chevron. In fact, Chevron took PEA off of Techron's msds, so there is no telling how much is in there. If there was a lot, I'm sure they would still be publishing the number. SI-1 contains 30-50% PEA:
http://www.redlineoil.com/msds/49.pdf

(Disclaimer: I don't work for Red Line, nor know anyone who does - I just like the product. )

mattaway

seafoam works great too

ozziesironmanoffroad

why would u WANT to use lead.... it says right on the speedo 'UNLEADED fuel ONLY!'

pbiker11

the way i heard it from an old timer is that the vehicle will run better with leaded fuel, but the leaded fuel will burn up the inside of your cat. this is what i was told, if im wrong or otherwise incorrect, postup!

Red3.slow

From my understanding of lead fuel, it was added as a modifier to gasoline. When used in high compression engine such as back in the 50's 60's and 70's non-leaded gasoline would auto ignight which could cause damage to the engine. When lead was added it helped to cure this.


Edit: What I was getting at is there is no reason for your low compression motor to need a lead subsitute.

22-re= 9.4:1 where as a 350 v8 from say 1967 might have something like a 11:1 compression ratio

pbiker11

so a dirtbike could potentially benefit from running a lead substitute?

for example, the 09 suzuki DRZ400e has a 12.3:1 CR the on road DRX400s has a CR of 11:1

Marc

The lead was used to lubricate the valves/valve seats.

No benefit to using it in anything but older vehicles that were designed for it.
If you installed hardened valves/valve seats in a older vehicle then it wouldn't need lead either.

I've been running my boat for 30 years without lead, and the valves/seats are fine.

bigt

i run it in my 62 austin healy.. it still on a loeaded gasket motor..dont put it in yer runner

yzrider273

cool thanks everyone
D@*$#T I KNOW IT SAYS UNLEADED FUEL ONLY..COME ON NOW!!!
i was just curios to see what the deal on it was

Sin91

read the bottle then

88alltrac

as well as a lubricant they used to use it to keep the fuel from igniting to early. back in the days of leaded fuel they gas they had could only be run at compression ratios of like 6:1 or something around that number. they learned that adding lead they could bump the compression up without the fuel igniting. then they discovered octane which was a much better safer substitute for delaying combustion.
at least that is the way i learned it in class.