Fluids, Differential and Coolant

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Fluids, Differential and Coolant

June 17, 2024, 05:06:27 pm

I'm up for a little maintenance. The book on mine calls for 8.3 pints of 80-90 for the differential and 30 quarts of Motorcraft Premium Gold for coolant. What's everybody using nowadays for the rear end and coolant? Thanks.
jor

Re: Fluids, Differential and Coolant

Reply #1 – June 17, 2024, 06:28:34 pm

I copied the differential recommendations here:
Service Interval - Rear Differential

I used Zerex Gold for coolant.

Rich

Re: Fluids, Differential and Coolant

Reply #2 – June 18, 2024, 02:13:48 pm

Thanks, Rich. That was the thread I was looking for.
jor

Re: Fluids, Differential and Coolant

Reply #3 – June 18, 2024, 02:48:26 pm

YMMV.
My 31IB starts heavy and my losing a few pounds doesn't do much. Plus I tow a CRV nearly always.
At my 30K service, the Ford dealership noted the trans fluid looked fine but the differential fluid was 'burned'.
Keeping trans service at 30K, I resolved to change the differential at 15K intervals.
I feel the expense is worth it to keep me from needing a sudden emergency visit to VonNachtFliegen Automotive somewhere.
YMMV
joel

Re: Fluids, Differential and Coolant

Reply #4 – June 19, 2024, 12:44:18 pm

Joel

Consider upgrading to 75w/140 synthetic fluid. This will help the fluid survive longer without breaking down. Ford recommends this weight fluid for the later E450 and F53s.
https://www.motorcraft.com/content/dam/ford-motorcraft/en_us/motorcraft_global/products/lubricants/quick_reference_charts/axle%20lubricants%20quick%20reference%20chart_english.pdf

Larry

Re: Fluids, Differential and Coolant

Reply #5 – June 19, 2024, 12:53:09 pm

I ordered Zerex Gold and Mobil 1 75-140 from Walmart.
jor

Re: Fluids, Differential and Coolant

Reply #6 – June 19, 2024, 01:35:02 pm

Quote from: jor - June 19, 2024, 12:53:09 pm

I ordered Zerex Gold and Mobil 1 75-140 from Walmart.

For those who do not know, always buy the coolant in the concentrated version, the pre-diluted coolant costs much more per ounce.
Water costs very little, use distilled water when diluting the concentrate.

Larry

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