I only use the Duracell from Batteries and Bulbs these days. 6 years in, no issues. First one replaced after 4, still worked fine. Second one leaked just barely around the terminals, still worked fine. Replaced no question. I'll stick with them for now.
Ethanol is not as efficient for MPG's as gasoline is.
It's used in winter fuel to prevent freezing.
And that.......................................is the rest of the story.
My Toyota fluid always looks like that after 40k runs. I do a drain and fill, about 2.5 quarts, and everything is fine. You can still see through the reddish fluid if it's a thinner stream and I changed the filter back at 57k. I would leave it until 75-80k.
I was very impressed today when changing the transfer case with Ravenol 75w. I did NOT know they had a hose integrated inside the bottle to make things VERY easy.
Also did the front diff (Valvoline bags 75w-90) and the ATF (Toyota WS). All I have left is the prop shaft with Valvoline red NLGI...
Super easy to do yourself, but if you have them do it, make sure you specify this:
I use whatever pink is cheapest when I do my 4Runner, typically either Peak or Zerex.
The proper way to do it is to prime it twice first, and wipe down with tack cloth. I used colored primer to match the paint.
Then use semi-gloss, two coats, to finish.
I just put in 3 quarts of Valvoline 75W-90 into my rear diff and it didn't explode yet.
SUPER easy with the bags on a 4Runner with the spare directly in the way. Took about 10 minutes for drain and fill. Zero mess.
I will also be putting in two quarts of that same oil into the front diff.
As...