9zero1790
Well-Known Member
i use the same. but in all fairness i think some other oils are just as good or maybe better than mobil 1. i got it on sale a few times so figured why not. as long as oil passes all the certs and is the right weight etc. im not worried. my poor 4g gets whatever is on sale that checks the boxes and has since new and it runs like a top.Eh, I'll beat the dead horse as well: My first oil change was at 2250 miles, and I used OEM filter and oil. Next one was at 5000 miles, and I switched to Mobil-1 Extended Performance filter and 5W-30 full synthetic oil, and will use that every 5000 miles for the life of the truck.
If you are planning to do your own oil changes, I recommend getting an oil drain valve (I like Fumoto, but there are several options) - it makes the process much faster and cleaner. Here's a little write-up I did on my drain valve: https://www.ranger5g.com/forum/threads/fumoto-oil-drain-valve.3031/page-2#post-144936
Since it has also been briefly discussed: at 2500 miles I also changed the front and rear diff oil as well as the transfer case fluid. I have not touched the transmission fluid. I used Amsoil Severe Gear 80w90 Synthetic oil in the diffs, and Motocraft Mercon LV in the transfer case. The rear diff fluid from the factory was already pretty dark, and there was a small amount of metal on the magnet. The front diff fluid looked much better (I only had maybe 100 miles of 4WD on it by then, though). Transfer case fluid also looked good.
Here is the drain plug from my rear diff, at 2500 miles. It's magnetic, and all that build up is metal shavings from the gears wearing in:
Here is the factory fluid I drained from my rear diff at 2500 miles:
At any rate: I'm not sure it really matters *what brand* of oil and filter you use. Change it on time, and you'll be fine. Enjoy your truck!
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