Herbpov said:
YosemiteSteve said:
Used Royal Purple Sythetic 75W-90 think it was around just over 2 quarts.
You should have used 75w-140 syn. It states that on the new finned cover.
"Should" maybe, but not a requirement for a 2004 Titan, owners only. Here is a link to a Technical Service Bulletin,
(TSB), about the specification change.
It is addressed to the dealer service departments. The 2004 owners are not required to follow this, but the dealers, (instead of Nissan), will pay for a rear end if it ever goes out, and Nissan can prove that the dealer didn't follow it. If they had changed the wording and mailed this to the 2004 owners, Nissan would be required to pay for the gear oil and the labor too, if less than required change interval.
I still use a synthetic blend 80W90 in the front and rear per 2004 specification. It is
Schaeffer 267 Supreme Gear Lube - 80W90.
I personally believe it is a better product. After driving country roads for an hour, I can crawl under the truck and grab it with my
bare hands, and hold it. The only bad thing is you have to contact one of their local reps. to buy it, and then only by the case, 12-pak. It was about $85 including the shipping. I think you 2005 and 2006 guys are out of luck since they don't have an equivalent product in your specification's weight. And their full synthetics are sold by the drum.
When my nephew bought his cabin cruiser boat, which I would guess weighs between 4500 and 5500 pounds, I towed it for an hour and a half, and then up into the foothills. After about two or three minutes I remembered to check the rear differential temperature, and it was too hot to grab, but I could easily put my hand on it for 1 full second, (this was a 75F evening).
Since for 1 hr. of 55-60 mph normal driving, (60 F ambient), I can grab the OEM's steel cover and hold onto it without being burned, only warm, if any of you with steel covers and M1 or other full synthetics can try it and report back it would be interesting. [Lightly touch it first, before grabbing as it might be very hot].
But the egg-beater test on "bob is the oil guy .com" is what convinced me to try this product.
The full synthetic doesn't climb, and the 267 is all over those teeth, (4th pic down. It also separates from water better than the full-synthetic they used in the comparison, pics 1-3.
Egg-beater Test
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