1st time replacement of transmission oil on mercury mountainner 2005

[adywicaksono]

Dear All

I have Mercury Mountaineer 2005, running already 91000 kms, never replace the tranmission oil and I'm confused now. In the manual it's recommended to replace every 30000 miles or more less 48000 kms. But I remember my friend told me that in hayness book, 1st time replacement could be done on 150,000 kms and the remaining yes regularly 30000 miles needs to be replaced.

Which one is correct one?

 

[swshawaii]

Ford maintenance schedule recommends 150K for "normal" driving, although most here feel that is far too long.

2005 Model Year Scheduled Maintenance Guide (Page 41)
http://www.fordservicecontent.com/Ford_Content/catalog/owner_guides/05mermg4e.pdf

2005 Mountaineer Owners Guide
http://www.fordservicecontent.com/Ford_Content/catalog/owner_guides/05mntog3e.pdf

 

[adywicaksono]

thanks for feedback