Hello All:
I purchased a 1995 Merc. Grand Marquis in July. The owner's manual states that the OCI should be 3000 miles or 3 months with "severe" service and 5000 mile/6 month OCI with "normal" service. Here is the info about the car and usage:
1. 151000+ miles.
2. Driven approximately 50 to 100 miles per week, all around town with some idling. It never sees the highway nor does it get stuck in major urban traffic jams.
3. All short trips.
4. The car is driven gently.
5. There is no sludge, no oil burning or leaking. The oil pan, rear main bearing seal, radiator, trans cooling lines, alternator, plugs and plug wires, coils and brake master cylinder were all recently replaced. Trans fluid just changed with Mercon V; differential fluid changed; new air filter. Overall condition, very good. Previous owner stuck with 3000 mile OCI using a variety of instant oil change places.
I am using an inexpensive dino like Mobil 5000, QS green or Supertech with Purolator Classic filters. Should I stick with a 3000/3 month OCI even if I am only putting approximately 1500 miles on the car in 3 months? I know that almost everyone says that 5000 mile OCIs are fine with modern dino oil, but I am concerned about the recommendation in the owner's manual. Thank you in advance for your input.
I purchased a 1995 Merc. Grand Marquis in July. The owner's manual states that the OCI should be 3000 miles or 3 months with "severe" service and 5000 mile/6 month OCI with "normal" service. Here is the info about the car and usage:
1. 151000+ miles.
2. Driven approximately 50 to 100 miles per week, all around town with some idling. It never sees the highway nor does it get stuck in major urban traffic jams.
3. All short trips.
4. The car is driven gently.
5. There is no sludge, no oil burning or leaking. The oil pan, rear main bearing seal, radiator, trans cooling lines, alternator, plugs and plug wires, coils and brake master cylinder were all recently replaced. Trans fluid just changed with Mercon V; differential fluid changed; new air filter. Overall condition, very good. Previous owner stuck with 3000 mile OCI using a variety of instant oil change places.
I am using an inexpensive dino like Mobil 5000, QS green or Supertech with Purolator Classic filters. Should I stick with a 3000/3 month OCI even if I am only putting approximately 1500 miles on the car in 3 months? I know that almost everyone says that 5000 mile OCIs are fine with modern dino oil, but I am concerned about the recommendation in the owner's manual. Thank you in advance for your input.