When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
Not sure when the diff service was done on my 2002 LS430.
I work at a parts store and a customer happened to just leave a **** ton of gear oil he never used, do yall think I should use this one?
And how much does the diff take?
I supplied the indie with Mobil 1 and I thought it was 80W 90 even though we don't get below 0F. I didn't want to get into a scenario where I drained it and the fill plug were stuck (kinda overly paranoid I guess). That was 9 years ago, and I remember him saying you can DIY just make sure you can do it while level, which you may not be able to if you can't get under without jacking. My wife's SUV has an air suspension, and this opened up my world to being able to get under without any jacking whatsoever....maybe LS430 UL's can do that...
OK, a bit freaked out now. I have 2005. have no idea what kind I need, but had my diff done 4 months ago,
at a shop, and I remember it said 75w90 on the receipt.. But the manual indicates a specific type, and only if synth required. As per below. Otherwise straight SAE90?
I am wondering if 75w90 was right vs straight 90. Not sure if that page is generic across models or the LS430 varied that year from 1 car to another. And not sure they used synthetic if they did use 75w90. My car has had a whine at 30mph (constant, soft) since then, seemingly from the FRONT, so I didn't think twice about this so far. How sensitive is the LS430 if it is not Toyota spec, and is 75w90 even right vs straight 90? I realize it is years later and oils may have improved etc. but in past at 60k and 120k did diff fluid at dealer... not that they could not use wrong viscosity/spec themselves. This time, not a dealer.
OK, a bit freaked out now. I have 2005. have no idea what kind I need, but had my diff done 4 months ago,
at a shop, and I remember it said 75w90 on the receipt.. But the manual indicates a specific type, and only if synth required. As per below. Otherwise straight SAE90?
I am wondering if 75w90 was right vs straight 90. Not sure if that page is generic across models or the LS430 varied that year from 1 car to another. And not sure they used synthetic if they did use 75w90. My car has had a whine at 30mph (constant, soft) since then, seemingly from the FRONT, so I didn't think twice about this so far. How sensitive is the LS430 if it is not Toyota spec, and is 75w90 even right vs straight 90? I realize it is years later and oils may have improved etc. but in past at 60k and 120k did diff fluid at dealer... not that they could not use wrong viscosity/spec themselves. This time, not a dealer.
Don't stress.
If you're in NY you don't want straight 90.
The fact that you changed it is more important than the synthetic vs non synthetic question.
Don't stress.
If you're in NY you don't want straight 90.
The fact that you changed it is more important than the synthetic vs non synthetic question.
Thanks, reading further, the warning to meet spec seems that it requires synthetic, which is now the default for diff fluid. It seems it was more a warning if you had the special diff to meet it, rather than not to use 75w90 on the other older style diff. I believe 75w90 syn is by far most common today and basically backward compatible, kind of like how 10w30 today will meet an older standard. They probably said 90 otherwise (if not on placard) since it was cheaper then.
There are exceptions, like GM cars may need Dexos (for warranty at least), but I think you are right that 75w90 synth (the modern standard) is fine. For my 6-speed transmission, however, WS only!
Thanks, reading further, the warning to meet spec seems that it requires synthetic, which is now the default for diff fluid. It seems it was more a warning if you had the special diff to meet it, rather than not to use 75w90 on the other older style diff. I believe 75w90 syn is by far most common today and basically backward compatible, kind of like how 10w30 today will meet an older standard. They probably said 90 otherwise (if not on placard) since it was cheaper then.
There are exceptions, like GM cars may need Dexos (for warranty at least), but I think you are right that 75w90 synth (the modern standard) is fine. For my 6-speed transmission, however, WS only!
Wouldn't the fluid need to be for a LSD or at least use an additive?
Wouldn't the fluid need to be for a LSD or at least use an additive?
Not following... LS430 does not have limited slip diff, AFAIK. Maybe those models that did were the ones that needed the synth fluid. Anyway, everything I've read now says good standard modern synth 75w90 should work.
I supplied the indie with Mobil 1 and I thought it was 80W 90 even though we don't get below 0F. I didn't want to get into a scenario where I drained it and the fill plug were stuck (kinda overly paranoid I guess). That was 9 years ago, and I remember him saying you can DIY just make sure you can do it while level, which you may not be able to if you can't get under without jacking. My wife's SUV has an air suspension, and this opened up my world to being able to get under without any jacking whatsoever....maybe LS430 UL's can do that...
that precisely what i did with my UL. Raised it to high and was able to slide under...albeit snuggly but still got it done.
I would never trust getting under this car without support as the air support could fail. What I would do is jack it with supports fill and then lower so excess comes out then raise and put plug in.
Diff service?
