What fuel can my car take?
Carmakers design engines for a minimum octane rating. If you open the fuel flap of your car and it says ‘unleaded petrol only’ it means 91 octane fuel is OK. If the fuel flap says ‘premium unleaded only’ it means you need to use at least 95. If the fuel flap tells you to use 98, that’s what you need to do.
What kind of gas does a Firebird use?
Actually it was 1971. Yeah, 1975 was the first year for the catalytic converter, that required the use of unleaded fuel. My 71 firebird is basically bone stock and runs on unleaded…but requires 91 octane.
Can a Ford engine be run on unleaded fuel?
Here is a list (as published by Ford Motor Company) of engines which can be continuously run with unleaded petrol. All heads have hardened valve seats fitted. However 95 RON unleaded fuel should only be used in standard green or blue top engines.
When to use premium fuel instead of unleaded?
It allows you to extract more potential out of your car while also potentially benefitting fuel economy at the same time. If, however, you drive a car with a low-powered engine which is used mostly for local errands, then you’re unlikely to see much benefit from using a premium fuel instead of regular unleaded.
What kind of unleaded fuel do I need for a red top engine?
However 95 RON unleaded fuel should only be used in standard green or blue top engines. Red top engines and all modified engines must run at least 97 RON super unleaded fuel and/or octane booster.
Actually it was 1971. Yeah, 1975 was the first year for the catalytic converter, that required the use of unleaded fuel. My 71 firebird is basically bone stock and runs on unleaded…but requires 91 octane.
When did they start using unleaded fuel in cars?
“I think 1969 was the year that cars started switching over to hardened valve seals, but they may not have all done it at once.” Actually it was 1971. Yeah, 1975 was the first year for the catalytic converter, that required the use of unleaded fuel. My 71 firebird is basically bone stock and runs on unleaded…but requires 91 octane.
Are there any cars that still use leaded fuel?
The answer is, frequently, no. Many of the cars built even when leaded fuel was common have sufficiently hard valve seats to endure unleaded fuel use, especially if the car was made after the mid-1960s.
Is it safe to use lead substitute for unleaded gas?
On the other hand, many classic-car owners argue that lead substitute can’t hurt your engine and may help reduce any risk of using unleaded fuel in an engine intended for leaded gasoline. For many, the low cost and ease-of-use of lead substitute (typically a small amount is added to the gas tank at fill up) makes for cheap peace of mind.