I just bought a 1998 Jetta GLS with 102,468 miles on it, and I was wondering what are some of the better types of oil that you would recommend for them. I was thinking either Rotella, or a synthetic brand. Also what type of oil filters would you suggest? Thank you for your responses.

 

Your oil selection should be based on which engine you have, which climate you live in and how you drive. Or you could just go with the recommendations in your owners manual.

 

the manual was lost before I bought the car, that's why I ask. Also, the oil recommendations for the car are based on when the car was new, not 100,000 plus miles later.

 

If the car has synthetic in it, stick with a synthetic oil, they last longer and handle the abuse better.
If the car has been run with conventional oil for 100,000 miles I would not suggest changing to synthetic.
Just confirm you have a 2.0 liter gas engine in your car.
Does your car burn oil?
And where do you live? The heat of Arizona or the tundra on Minnesota?

Your answer could be anywhere between 5W30 and 10W40 depending on the above conditions.

For a car in good condition and treated well the grade of oil should not change over the life of the car.

Way too much technical information at:
http://www.bobistheoilguy.com/