Lucas Octane Booster

[PurpleX]

I've heard that this works ok as an octane booster but that it also provides some protection to valve seats on engines without hardened seats. Anyone else heard this? Not sure if my engine has hardened seats or not. Is there any merit in using any of the of-the-shelf lead substitutes?

 

[AR67GTX]

The answer is yes and no. Valve seat recession with unleaded fuel is an issue, but only if your engine is typically operating under a very heavy load - like pulling a trailer or powering an RV or something. Otherwise, you don't need to worry about the valve seats. After 2 or 300,000 miles they may be shot, but before then you will probably have to re-ring the engine and then you can have the heads rebuilt and hardened seats installed. You shouldn't need octane booster with a stock engine but sometimes the combination of factory 10:1 compression, factory cam, heavy car, and some carbon buildup will result in some pinging and you have to pull an unreasonable amount of timing out of the engine to deal with it. If you have no other choice except to resort to an octane booster - this is the one you need to spend your money on.

http://www.ebay.com/itm/Octane-Supreme-130-fuel-additive-octane-boost-booster-/190586596801

You won't buy this in the store and it's not legal for road use. It actually, for real, has real lead in it so it will ruin any catalytic converter unlike the phoney stuff bought off the shelf. It will raise octane by a whole octane level or more, not by a tenth or two. It's not cheap and you don't want to get it on yourself.

 

[snakeoil24]

Have you used this stuff?

 

[68GTX4SPEED]

I have and it's a must for my car, 440 six-pack 284-484, whitout it I can't drive whitout heavy pinging, I add 1 bottle to 35 gallon and it works perfectly.

 

[AR67GTX]

Have you used this stuff?

The Lucas? or the Octane 130? I use the Kemco Octane 130 in my 67 GTX and in my 12:1 compression 427 Corvette. The Corvette is actually less sensitive to Octane due to the lighter weight, aluminum heads and long duration cam.

 

[wedge69]

I run it and Love it ! I also use to use 104+ in the Black bottle . But found the lucas worked better in my set up.