I have talked to 2 engine shops about it and they told me not to waste my money on additives. They said that after realizing I don't use my old Buicks as daily transportation. Few thousand miles a year only. I do throw a can in on most occasions though. Just to be safe!
Redline is carried by most speedshops. Or you can order from Summit or Jeg's. It's usually not a featured product so you may have to do a search or call them. And Redline is the only one of the four that passed that test that is available is U.S.A. I have also heard that Bardahl and CD-2 have good products.
unless your car is a daily driver , running lots of miles , i personally would not be too concerned about using a lead additive .
if you aren't going to use the car on a regular basis just fill er up with 100LL avgas. it's leaded, cheaper than race fuel, and you'll not have ANY problems with gumming/enameling from gas evaporation. http://www.v8buick.com/showthread.php?s=&threadid=42675
What is the downside of using lead additive? I drive mine less than 1,000 mi/year but have been using additive with every fill-up. I spoke to the rebuilder and since the valve seats were not hardened, he recommended using additive.
well thats the thing, a guy at a shop that build heads all day said "don't bother with additive in my 69 chevy", it makes no sense. I use it. Isn't that AV fuel expensive? Have to get it at airports? too much lead additive (like more in 1 tank than is recommended)can make it kinda act like its rich, and chug a bit, thats all I know
Re: ? The name is a bit deceptive in that 100ll contains 2 grams of lead per gallon. Its name compares it to straight 100 avgas which as I recall has 4 grams per gallon. Both are leaded fuels. Do not get these confused with 80/87 avgas which is tinted red instead of blue which contains 0.5 grams of pb per gallon. It is leaded to a much lesser degree. The 80/87 is also on the motor octane as opposed to the research octane scale.
Isn't that AV fuel expensive? Have to get it at airports? expensive compared to unleaded premium. cheap compared to leaded racing gas. yes, you have to get it from your local airport. try / call a small field (also known as an FBO or Fixed Base Operator) and see if you can drive up and fill your fuel can of choice. technically, it's not supposed to be done but the small fields are usually pretty informal about these kinds of things.
word Up, eh? I've been using the lead substitute since I drove my ole Boat home....it's a '70, so I'm not taking ANY chances! My beauty, my ride.....if you don't have a cat to worry about, keep it at TOP performance! -- Larry '70 Electra Convertible
leaded gas issue this was a question that all fuel suppliers were unable to answer this very important non avaible fuel is the most important to my willingness to buy and restore my favorite car 67 riveira i want this car and i was able to find optional shoulder seat belts and brake conversions kits re:front discs kits thanks danny any input re: exaust kits much appricated
I talked w/ a guy in town (Buick dude w/ a 72 Skylark that is 455'd), he told me that since my LeSabre has been driven since the 60's, it probably has enough lead built up in the heads that I won't need it. I think I will go along with that. Mostly because I really don't have money right now and the engine seems to run just fine on 89. Patrick
new info Well, new to me, WHen I had the heads rebuilt on my CHevy 327 the expert said they already had hardened seats installed in '69 in my engine. This engine has never been apart. SO it really depends on which engine, which make, and what was offered. My engine was built in canada in a 69 impala, maybe canada used hard seats?
