For the 3.0 liter V6 engine in a 1999 Ford Ranger , with engine oil filter change :
( 4.5 quarts ) according to the Owner Guide
According to the 1999 Ford Ranger Owner Guide : For the 3.0 liter V6 engine : With engine oil filter change : ( 4.5 U.S. quarts of 5W-30 )
With engine oil filter change ( 5 quarts of engine oil )
5.0 quarts with engine oil filter change
The 4.0 liter V6 takes ( 5 quarts ) with engine oil filter change
According to the 1999 Ford Ranger Owner Guide : With engine oil filter change ( 4.5 quarts of engine oil ) for your 2.5 liter 4 cylinder
According to the 1999 Ford Ranger Owner Guide : With engine oil filter change : The 2.5 liter four cylinder engine and the 3.0 liter V6 engine take ( 4.5 U.S. quarts ) The 4.0 liter V6 engine takes ( 5.0 U.S. quarts )
According to the 1999 Ford Ranger Owner Guide : The 5 speed manual transmission takes ( 2.8 U.S. quarts of Motorcraft MERCON automatic transmission fluid )
According to the 1999 Ford Ranger Owner Guide : With engine oil filter change : The 2.5 liter four cylinder engine and the 3.0 liter V6 engine take ( 4.5 U.S. quarts of 5W-30 ) The 4.0 liter V6 engine takes ( 5.0 U.S. quarts of 5W-30 )
For a 1999 Ford Ranger : With engine oil filter change : The 4.0 liter V6 engine takes ( 5 quarts ) The 3.0 liter V6 engine takes ( 4.5 quarts ) The 2.5 liter 4 cylinder engine takes ( 4.5 quarts ) According to the Owner Guide
A 4.0 ford ranger will hold 10 quarts of transmission oil. This is if the if the transmission is totally dry including the lines and the transfer case.
The 2008 Ford Ranger owners manual shows ( 5 quarts ) of engine oil ( 5 W - 30 ) WITH FILTER CHANGE
For a 1992 Ford Ranger , 2.9 V6 : With engine oil filter change : ( I believe that is 5.0 US. quarts )