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I 'm importing a 1968 mustang coupe 289 Was wondering if it will run properly on unleaded fuel or will it need a lead additive mixed with the petrol The engine was rebuilt a few years ago?
Wiki User
∙ 15y ago
The 68 obviously was built during the time that regular gas was being used. The lead compounds contained in the gas was sort of a lubricant for the top side of the piston rings. Now, oils manufactured currently, contain synthetic compound additives that bind to the cylinder walls that does away with the need for leaded fuel, so to answer your question, it will probably run better with un-leaded fuel, especially since you just had it re-built with current day parts.
Wiki User
∙ 15y ago
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What is the difference between Petron xcs and Petron Extra Unleaded?
Petron XCS has a valve additive and more octane than the Petron Extra Unleaded, also known as Petron Xtra Unleaded. The valve additive is best for older engines and the octane in the Petron XCS gives the engine more power.
Can unleaded gas be used in a 1966 Ford Mustang?
You can use unleaded in a low compression engine such as the in-line 6 and the 260. But use a high octane unleaded instead of regular unleaded. If however you have the 289, I am not sure on this engine. The 289 HO will require the use of a VSRP additive at each fill up. If your 289 has hardened valve seats and does not require a VSRP additive, you can simply switch to Shell V-Power (98 octane) or Shell Unleaded (95 octane) straight away. If you find that your Mustang tends to run hot then you will need to readjust the fuel/air mixture on the carburetor for the modern unleaded fuel.You can use unleaded in a low compression engine such as the in-line 6 and the 260. But use a high octane unleaded instead of regular unleaded. If however you have the 289, I am not sure on this engine. The 289 HO will require the use of a VSRP additive at each fill up. If your 289 has hardened valve seats and does not require a VSRP additive, you can simply switch to Shell V-Power (98 octane) or Shell Unleaded (95 octane) straight away. If you find that your Mustang tends to run hot then you will need to readjust the fuel/air mixture on the carburetor for the modern unleaded fuel.
Is there a problem with using unleaded fuel in a '67 landcruiser?
maybe, should be using a Lead substitute additive to prevent trouble.
Leaded or unleaded gas for 1980 GL1100 Honda Goldwing?
Hi, I would like to know this as well, anybody out there know I think it will run on unleaded. I don't think they make leaded gas any more unless you buy the additive.
What is the difference between leaded and unleaded fuel type?
Leaded fuel which has been banned for sale in the U.S. has a lead additive added during the refinery process.
Should you use leaded or unleaded gas in a 1978 Chevy Scottsdale 350 5.7 liter?
Since leaded fuel is no longer readily available at most all gas stations, you may have to use an additive. Proper leaded fuel is a little bit better for your engine than non-leaded additives, but hard to get and quite expensive. An additive like Tetraboost adds the lead to unleaded gasoline with lead-scavengers. All vehicles sold in the US from 1971 on are made to run on unleaded gasoline, so there is no need for an additive in your 78 unless you have an older unconverted engine in it. It should run fine on very low octane fuel.
Do you need a fuel additive lead when using unleaded gasoline in your 1974 BMW 2002 automatic?
Yes, Lead is good. Your valves could be damaged by using unleaded. Try http://www.batterystuff.com/fuel-treatments/OS6q.html This is real tetraethyl lead, the good stuff.
Why do people use unleaded gasoline?
In the past we used gasoline with a lead additive in it. Since lead is a heavy metal and can cause birth defects, the US government required that gasolines be lead-free.
Do old 1972 454 heads need to be redone to run unleaded gas?
Your 1972 454 does not have sodium filled stainless steel valves with rotators as far as I know, so it would be unwise to run unleaded fuel. I would add a lead additive. Do so more research to make sure I am correct, but I am 98% sure I am.
Where can you buy leaded gas?
Nowhere I know of. You can however buy a lead additive to add to unleaded fuel, at any auto parts store.
What if you have a motor that takes leaded gas what kind of gas can you use?
most all auto parts stores carry a lead additive for this purpose, it is fairly inexpensive and works very well because it is simply a lead additive that the unleaded fuels do not have. it is complete of course with the mixture ratio instructions and they must be followed correctly, if they are not then youwill damage your valve train or valves in the engine.
What lead additive do you use foe a 1973 v w karmann ghia?
None is needed. The car came from VW with hardened valve seats, and by now this specimen has had the heads changed--and all aftermarket heads have unleaded valve seats.
