I have concluded that conventional oil can go long distances, that my engine will run much longer than my chassis and that running high dollar synthetics and then changing them out below 10k is a waste of money.....
I have a 2000 Ford Mustang. I knew the first owner. Her OCI was 4-5k and she sold it to me at 109k. My OCI has been 5-7k. Now I will go 8k+ Look at these numbers. I realize a naturally aspirated 3.8 V6 is not nearly as valuable as a lot of engines on here, but synthetic seems like overkill for most people.
By the way, at the recent change, I was down a full quart, so I'm thinking if I had refreshed it with a quart that week, my numbers would have been 20% lower. It was at the right level on the previous change at 7500 miles. This is mostly around town miles, although not heavy city driving.
http://www.mediafire.com/file/oudefrz1zzb/MustangOil62509.pdf
I have a 2000 Ford Mustang. I knew the first owner. Her OCI was 4-5k and she sold it to me at 109k. My OCI has been 5-7k. Now I will go 8k+ Look at these numbers. I realize a naturally aspirated 3.8 V6 is not nearly as valuable as a lot of engines on here, but synthetic seems like overkill for most people.
By the way, at the recent change, I was down a full quart, so I'm thinking if I had refreshed it with a quart that week, my numbers would have been 20% lower. It was at the right level on the previous change at 7500 miles. This is mostly around town miles, although not heavy city driving.
http://www.mediafire.com/file/oudefrz1zzb/MustangOil62509.pdf
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