- Jan 7, 2003
- New Jersey
Which oil weight is the best to provide LONG engine life for my 2006 Hyundai Elranta...5W-20 or 5W-30? Currently, I run 5000 OCI with Motorcraft Syn Blend 5W-30 and the OEM Hyundai filter, but I am wondering if I can be doing better for more gas mileage and longer engine life? Would switching to a FULL synthetic really provide any improvement in my case? I have 47200 soft miles now and plan to try to take the Elantra to around 175,000 miles. I drive conservatively and the car is in showroom MINT condition. My friends call her "Golden Girl."