Maintenance Question (3 Viewers)

[Gebomartin]

I know I am taking a chance on getting ridiculed but I am hoping I can get some guidance. Just purchased a '23 GX460 with 24K miles. My question is regarding the gear oil and transfer case oil. I have decided to use 5W-30 in the engine. I know what the manual says for the gear and transfer case oil but what do you use? I want to protect my "investment" and don't care about fuel economy (if I did, I sure would not have purchased a V8). It seems some use 75W-90 for all three boxes. Some use Red Line for the transfer case. Anyways, I'd like your opinion. Oh, I did get that small filter to replace the foam one on the secondary air box. Any advice, I'm all eyes and ears.

 

[Acrad]

Likely to hear full spectrum of recommendations

I wouldn't think the 5W-30 would cause any issues.. IIRC...others have previously posted an option in other markets.

I do 0W-20 Amsoil on mine. I also use Amsoil gear oil for the front and rear diff..but the OEM 75W unicorn piss in the center diff.

I haven't used it myself but Revenol has a straight 75W for far cheaper than OEM

75W Gear Oil - RAVENOL MTF-3

RAVENOL MTF-3 is a fully synthetic 75W gear oil for drive axles & transmissions. Suitable replacement for Toyota / Lexus 08885-81080, VW G052512A2, & many more.

www.ravenolamerica.com

 

[Ohio Nori]

I just did a full fluid replacement at 45k miles. Toyota coolant, trans fluid, and gear oil for the transfer case. F/R diffs, used redline. Similar logic to protect my Nori.

 

[llm]

i used the ravenol 75 as posted. no issues 30k miles, not that one should expect any

 

[Cold Iron]

I use Ravenol in all 3 boxes. I get the kit with all the oil from Blau Parts.

Highly doubt that you will get ridiculed for asking, and good on you for doing the maintenance that many overlook.

 

[Gebomartin]

I know I am taking a chance on getting ridiculed but I am hoping I can get some guidance. Just purchased a '23 GX460 with 24K miles. My question is regarding the gear oil and transfer case oil. I have decided to use 5W-30 in the engine. I know what the manual says for the gear and transfer case oil but what do you use? I want to protect my "investment" and don't care about fuel economy (if I did, I sure would not have purchased a V8). It seems some use 75W-90 for all three boxes. Some use Red Line for the transfer case. Anyways, I'd like your opinion. Oh, I did get that small filter to replace the foam one on the secondary air box. Any advice, I'm all eyes and ears.

What weights are you using ?

 

[Hiluxforever]

I have the dealer do it, and use that as an opportunity to get a second set of eyes on my chassis.

I use recommended weight. If it was a steel block I would probably run 10w30