albator
Active Member
- Joined
- January 14, 2020
- Messages
- 61
- Reaction score
- 7
- City, State
- Bonny Doon, CA
- Year, Model & Trim Level
- 1999 Mercury Mountaineer
Which oil do you recommend?
5W-20 or 5W30?
Synthetic, mix or non-synthetic?
What about those "high-mileage" oils?
My engine is 1999 4.0 SOHC, 200k miles
At Costco they have either the Mobil-1 High-Mileage, or the Kirkland oil
Both full synthetic, Costco is half price.
What about the oil filter?
Motorcraft or aftermarket?
- E7TZ-6731A (FL-1A)
- D9AZ-6731A (FL-1HP)
Filter price: FL-1HP cost 3 times the price of FL-1A)
5W-20 or 5W30?
Synthetic, mix or non-synthetic?
What about those "high-mileage" oils?
My engine is 1999 4.0 SOHC, 200k miles
At Costco they have either the Mobil-1 High-Mileage, or the Kirkland oil
Both full synthetic, Costco is half price.
What about the oil filter?
Motorcraft or aftermarket?
- E7TZ-6731A (FL-1A)
- D9AZ-6731A (FL-1HP)
Filter price: FL-1HP cost 3 times the price of FL-1A)