Rear diff fluid at 1k

Even though the book says to change it every 30,000 there's no way I would leave the initial fill in there for that long. Haven't had a chance to do the front differential yet but the rear diff had a silverish tent and a ton of shavings on the magnet. The transfer case was very dark brown.

 

Hmmmm..... Good call on changing that then.

 

That's was how mine was as well; sludge-like build up, but not metal on the magnet thankfully. Although, like an idiot I waited for the 30k.

 

Good job! I agree, get it out sooner rather than later - I probably wont go as quickly as 1000 miles but probably around 5k. I did my first oil change around 450 miles.

 

sludge is worn metal and oil deposits

 

Just an fyi, there's a reason they say to change it at certain intervals. Those little deposits are actually good for differentials and transfer cases. They fill tiny spots in gears and make for less slack. Each time you flush a component you're essentially aiding the erosion of the internals.

But keep flushing differentials, transfer cases, oil changes early... Since people think they know better than the engineers who designed them.

Another thing to note, Toyota provides a warranty based on how long they think their product will last. They wouldn't suggest a 30k oil change if they thought it would degrade their product.

 

If you look again in another 1000 miles it will look the same way. "Looks" has nothing to do with service intervals. I swear some folks should just ride a bicycle.

 

This is common sense but old myths die hard.

 

you should not take a bath either will make you look thin

 

Ok...???

 

I ride a bicycle...

 

I don't have an issue with changing out fluids earlier during the break-in period, but agree with the Engineers at Toyota for intervals. Same goes "especially" with oil weight.

 

That's where there's a common mistake. On a new vehicle there isn't a break in period.

 

Well, we can agree to disagree...

 

Only thing I care about in the first few hundred miles is varying the braking and engine RPM. After that... I just drive it and change fluids where recommended.

 

It’s not a mistake, you are just wrong is all.

 

Forgive me, I dont mean for this to come off the wrong way, but please cite proof. I have never heard this...ever...except when referring to very old transmissions and valve trains where if it has already been neglected, you dont want to dislodge stuff.

Cite an article, reputable YouTube, something please. I have an open mind.

 

Toyota engineers also stated for a long time that WS transmission fluid never needs to be changed. Changing fluid early won't hurt your truck.

 

Only "break-in" I saw on the manual was about towing...

Although I did drain the motor, t-case, and axles after 5K and replaced with synthetic fluids.

 

FWIW ... I have always subscribed to the theory that the fresher the lubricant, (oils, grease and ect.) the better ... but I am not a mechanic either.

Maybe the exception would be ... flushing an old auto transmission and those lose tolerances might give you a few problems ... again, I am not a mechanic.