5w30
10w3010w30
Most diesels take 5w or 10 w 30 weight oil
5w30 synthetic blend motor oil 4.7 qts.
There is no molecular weight of motor oil because it is a mixture, not a pure compound.
According to the 1996 Mercury Grand Marquis owners manual ( 5W-30 engine oil ) is the PREFERRED oil weight
According to the 1996 Mercury Grand Marquis Owner Guide ( 5W-30 is the PREFERRED engine oil )
should be like 80 or 90 weight gear oil
Any of the major American oils in SAE 10w30 weight will be fine.
Recommends a 10-30 weight motor oil for its Montero sport model. A heavier weight oil can be used in extremely hot climates.
The weight of motor oil will depend on the size container. A gallon of motor oil weighs approximately 7.5 pounds.
For a 2002 Kia Sportage the recommended oil to be used is a 10W-30. Most vehicles use this weight of oil. Depending on the climate it is best to stick with the recommended oil weight for your vehicle.