Is it worth paying more for certain brands of gear oil

A litre of Castrol oil is $20 but other gear oil such as Mobile 1, Royal Purple, etc is about $30 or more


The Castrol oil meets all the Toyota specs for gear oil ( diff oil)

Thoughts ?

Big savings when doing the two diff and transfer case.

By the way, these are Canadian prices.

Walmart supertech full synthetic.

No, on Royal Purple.

East Coast Gear says Royal Purple is about worst gear oil. They recommend
Lucas 80W90 non synthetic. Go to their site and check it out.

85-140 for standard conditions, 80w90 for cold conditions. 85-140 is what I've been running since I regeared 3 1/2 years ago and haven't had a single issue since. I do still run mobil 1 synthetic in the transfer case though.

ECGS Gear Oil Recommendation

I used Mobil 1 Delvac 75w90. So far so good

not sure what year your guys 4runners are, but no 4th gen calls for 85/140 in any of the diff's. & only calls for 80/90 in the rear if you operate below 0*f, otherwise it says straight 90w, but thats hard to find so 80/90 is perfectly fine for all temps... & as of 08 toyota says to use full synthetic the rear also which is usually a 75/90.

the front & center diff call for 75/90 which is only available in a full synthetic. not sure why you would suggest a non synthetic or 85/140 unless theres a specific purpose for it or aftermarket parts call for it.

as for brands, there is nothing wrong with any brand gear or motor oil if it meets the specs of your vehicle. & as mentioned above, walmart gear & motor oils are great, they are made by a major oil company for walmart & have been tested to be very good oils. i use valvoline since its a top rated brand & is usually quite a bit cheaper than the other popular brands like mobil 1 etc.

I'd be very comfortable using Castrol Gear Oil. Last time I chose gear oil I used Mobil 1.