How long can I go on GC?

[Buzzsaw]

I just filled my 1999 Ford Ranger 4x4 4.0L with GC. How long of a drain can I reasonably get with the GC? The vehicle holds 5 quarts and I am using a Motorcraft FL-1A filter. I do about 10 to 15k a year mainly highway miles. I plan on doing a UOA at the end of the drain interval recommendation that I receive from you guys.

 

[Audi Junkie]

One year sounds perfect. As per Mercedes 229.3 it is good for 25,000 miles. Half of that is a slam-dunk.

http://www.whnet.com/4x4/oil.html

 

[crossbow]

Didn't mercedes just get sued because of their extended OCI's?

 

[andyfish]

quote:

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Originally posted by Buzzsaw:
I just filled my 1999 Ford Ranger 4x4 4.0L with GC. How long of a drain can I reasonably get with the GC? The vehicle holds 5 quarts and I am using a Motorcraft FL-1A filter. I do about 10 to 15k a year mainly highway miles. I plan on doing a UOA at the end of the drain interval recommendation that I receive from you guys.

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Personally I would just change the oil every 6 months which leaves a reasonable interval of 5k (low) to 7.5k and not worry too much more about it.

 

[Audi Junkie]

quote:

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Didn't mercedes just get sued because of their extended OCI's

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They got sued because they did not speciify "synth" (whatever that is) in the manual and people ruined their engines using dino and going by the MB FSS intervals.

 

[doyall]

I would do a 6-7k run the first time then do a UOA to see if the oil seems fit to try 10-15k the next run.

 

[TomJones76]

I think that Mercedes problem (lawsuit) was also that some dealers were doing oil changes and not only not using synthetic, but actually using "lowest bidder" bulk dino oil.
GC really does look like it CAN go 25,000 highway miles in a healthy engine that doesn't see excessive dust in its environment.

 

[Buzzsaw]

Thanks for the replies guys.

 

[lexus114]

Originally Posted By: crossbow
Didn't mercedes just get sued because of their extended OCI's?


Because when they first went to the extended drain intervals,The tech`s werent putting synthetic oil back in the engines.

 

[rg200amp]

Originally Posted By: andyfish

quote:

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Originally posted by Buzzsaw:
I just filled my 1999 Ford Ranger 4x4 4.0L with GC. How long of a drain can I reasonably get with the GC? The vehicle holds 5 quarts and I am using a Motorcraft FL-1A filter. I do about 10 to 15k a year mainly highway miles. I plan on doing a UOA at the end of the drain interval recommendation that I receive from you guys.

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Personally I would just change the oil every 6 months which leaves a reasonable interval of 5k (low) to 7.5k and not worry too much more about it.


Thats what I would do as well.