how often do you guys change your oil in your FEH?
in the manual in my 08 it says every 10,000 miles but that seems a bit much.
i usually replace the oil in all other cars in about 4000.
did some research and there are a-lot of people who say in new engines you don't need to change the oil as often and some people stick to 3-5000 mile oil changes.
who should i listen to?
when do you guys change your oil?

 

I just follow the Ford recommended 12 months or 10k miles and change when the dash indicator says it's time, Mobil 1. Being a hybrid the engine spends little time idling so the oil has an easy life. At one time I had Blackstone Labs analyze oil samples at 10k and 20k and the oil was still perfectly serviceable when I changed at 20K. Seems to me that reduced maintenance is one of the big advantages of a hybrid.

 

Every 12 months with Mobil 1.

 

do you guys use synthetic? if so why?

 

I have it done every 6 months. That would be about 7000 miles. Last time I noticed the mechanic had put synthetic in it. I don't put enough miles on a car to worry about wearing out the engine, and most of the mileage is highway, so I don't worry about doing it more often. Besides being a hybrid, as was mentioned.

 

Depends on what you want. If you're a 100,000 miles kind of guy, follow Ford's recommendation.

I use Synthetic, have an automatic pre-lube pump installed, a 1µ bypass oil filter, and an 8µ main filter. I do oil analysis and have never had a sample come back unserviceable even at 30,000 miles.

Still going strong.

 

I always use Mobil 1.

I always go at least 15,000 miles.
(at 185,000 miles now)

Once I went about 18,000 miles and sent a use oil sample to Blackstone Labs. It was still very clean and had an estimated 20% life left to the oil.