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- - first oil change (https://www.ford-trucks.com/forums/534418-first-oil-change.html)

super duty bobby

10-07-2006 01:08 AM

first oil change

whats up guys just hit 1000 miles on my 07 psd im ready to do my first oil change do i have to use the cj-4 stuff please let me know!!!

Bear Hunter

10-07-2006 07:27 AM

No you don't.

utahtom

10-07-2006 09:34 AM

Select your choice of CI-4+ rated oil in 15w40 weight is probably your best bet if the temps will be above 30 degrees F. You should not use a full synthetic until 10k miles. Good luck:-X22

AGE mechanic

10-07-2006 11:51 AM

If you can get the CJ-4, then use it. It isnt synthetic.

X-Hibition

10-07-2006 04:41 PM

utahtom, What is the engineering reason behind the delay of a switch to synthetic until 10,000 miles?

utahtom

10-07-2006 05:33 PM

X-Hibition, Many folks (including some oil manufacturers) recommend diesels be operated to 10K with conventional oil for a variety of break-in related reasons...
Click this thread for more discussion-->https://www.ford-trucks.com/forums/2...ight=breaking+

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