In Reply to: 1997 Chrysler T&C lube advice posted by Greg on 11/03/01 at 6:00 PM:
For your engine I would use a Poly Alpha Olefin type of synthetic. That is a Mobil1 or equivalent. You can stick to the 5W30. In summer a 10W30 would also be a good idea. Extended oil drains are quite feasible with a synthetic. If you do 12k a year you could do one change out per year. A change out in spring and fall would be best. Change your filter every three months. A high efficiency filter is well worth the money. Look at the pass through rating of the filter. The higher the capture rate of the smallest particles is the one you want.
When you switch to synthetic the oil may become dark before it usually would. The synthetic will clean out all the junk deposited by the mineral oil. Just change the filter and top up with a quart.
Chrysler transmissions do require a Type 7176 fluid. More companies than just Mopar make them. In my experience I have not had a Chrysler tranny fail. Dynasty, Intrepid, New Yorker, Grand Voyager – all went to about 60K in heavy use over two years. Never a problem. My wife’s 92 Shadow experienced poor shifting and sticking at about 60K and 6 six years on the same fluid. I changed the fluid and added a napthenic based additive (Trans Medic). After driving for an hour 50k, the problem was gone. I suspect that many transmissions are replaced or rebuilt when there is a fluid problem not a mechanical problem.
As for air filters: The KN type of filter (oiled) will provide more air flow while keeping the engine clean. You will achieve a small boost in power. Problem is they cost $100.00 or so (but last a lifetime) and more air on a computerized, injected vehicle, may be read by the air mass or oxygen sensor as a need to pump more fuel.
I only use these filters on my old truck and my Volvo turbo.
Hope this is of use to you. Thanks for coming to the forum.