The 200 cubic inch straight 6 cylinder in a 1966 Ford Mustang holds ( 4 and 1/2 U.S.
quarts with engine oil filter change )
Six quarts
Put oil in it and Use the dipstick to see how much is in there.. when it gets full that's how much goes in there! Einstein.
I BELIEVE that is 4.5 quarts with engine oil filter change on the 1966 Ford Mustang STRAIGHT 6 cylinder engine
With engine oil filter change ( 5 quarts / 4.7 liters of engine oil )
The year of your Mustang would be helpful. But is should be between 4-6 quarts depending on the engine. Hope This Helps
5 quarts ( 4.7 liters ) with engine oil filter change
I believe that takes 5 U.S. quarts with oil filter change
In the Mustang of that year having a 6.75 in. rear end in it you would need 2.5 pints of gear oil. This is 90 wt. oil. If you have a 7.50 in. rear end, you would need 3.5 pints of the 90wt oil.
I believe the 200 cubic inch straight 6 cylinder in a 1968 Ford Mustang takes (4.5 U.S. quarts ) with engine oil filter change
It holds 5 qts. with a new filter.
5.0Qts
According to the 2001 Ford Mustang Owner Guide : With engine oil filter change : The 3.8 liter V6 engine takes ( 4.7 liters / 5.0 U.S. quarts of 5W-20 )