Global Oil Spec 2UZ-FE

This site may earn a commission from merchant affiliate
links, including eBay, Amazon, Skimlinks, and others.

Nottajeep

SILVER Star
Joined
Aug 17, 2008
Threads
102
Messages
3,423
Location
BFE
My 99 Hundy specs API SJ 5w-30 wt oil.
Just curious if the international Mud fans would share the Toyota oil spec in their cruiser. Seems like all 100's with the same engine would have the same spec... (excluding changes to the API std such as SL, SM etc...)


Also, did Toyota keep the Tundra and 100's spec'd with 5w-30 through 2006/7? Most of the car mfg industry is changing to the 5w-20 now, probably to meet fuel economy requirements.

:beer::popcorn:
 
5w-30 is pretty much impossible to find South of the border in hot climates. I had the service done by Toyota and the specs are not stated on the invoice....but I bet you a doughnut is not 5w-30.:cool:
 
5w-30 is pretty much impossible to find South of the border in hot climates. I had the service done by Toyota and the specs are not stated on the invoice....but I bet you a doughnut is not 5w-30.:cool:

Down there, I can imagine you run 10w-30 or 10w-40. What does your Toyota manual spec?
 
I was browsing the Aussie Valvoline site today and plugged in my LC model for the oil guide.

Valvoline Au and Mobil Au recommend 40 and 50 weight oils for my '99 LC.

This is surprising. Are we just running the 5w-30 in the US for fuel standards and sacraficing engine protection? Anyone in the US running a 40wt oil?

Mobil Australia - NetLube


Valvoline Australia - NetLube
 
The mobil site you linked shows (me) 5w-30 and a few other mulit-viscosity oils... no straight weight. This is for both 99 LC and LX.
 
Yeah, I did not mean straight weights in the above.
It is odd that 15w-40 and 20w-50 (valvoline) and 5w-50 (mobil) weights are listed.

I just wondered how the engine performed with these heavier viscosity oils...:hhmm:
 
I've always run 15w-40 delo or delvac in the 100 for the warm season and then 10w-30 Mobil 1 in the cold season.
 
I've always run 15w-40 delo or delvac in the 100 for the warm season and then 10w-30 Mobil 1 in the cold season.
Yeah, and I'm starting to wonder what I should be running in a 190,000+ mile 100. It puffs a little smoke when it's first cranked after a week or so, but it doesn't smoke at all if it's driven everyday. Like the rest of you, I'd like to know what other viscosities Toyota deems "acceptable" in US-spec 100s......
 
I'm running 0w-30 mobil 1 and I'm pretty happy with it. But, I live in a pretty cold climate this time of year, usually (except for this whole "unseasonably warm" thing going on right now...).

If you're puffing smoke, have you tried a good high mileage oil? Valvoline MaxLife or Castrol GTX High Mileage are both good oils, I've run them in several GM SUVs with over 200k on the clock. No ill effects. Might not solve your smoke issue but could be good for the overall health of the seals.
 
I remember reading an article that quoted Toyota engineers explaining that their newer engines were designed for the lighter weights and got no benefit from the heavier oils. They said that they were having the most difficult time getting people to understand this in the third world where literacy rates among mechanics were low and where year round high temps had earlier made heavier oils a good choice.

The article mentioned an educational campaign Toyota was running worldwide but said it was only having mixed results.

Unfortunately I have not been able to find a link to the article.
 
I run 5-30 Amsoil and have since acquiring in with 69,xxx...it just turned over 197k. Zero oil burn.
 
Shell Australia LubeMatch gives me 5w-40 for my 2004 LX. The same is true for a Ford modular 8, while it is 5W-20 in USA.
 
What does your Toyota manual specify? Are you in the US or another country?
 
Last edited:
I use Delo 15-40 100% synthetic in both of mine I believe that it might closer to a 10-30 oil anyways. The older one does use a little oil but it is cleaning and the protection of a synthetic can not be beat.
they want 10-30 in both of them; a 15-40 oil is pretty much a universal engine oil anyways.
 
I use Delo 15-40 100% synthetic in both of mine I believe that it might closer to a 10-30 oil anyways. The older one does use a little oil but it is cleaning and the protection of a synthetic can not be beat.
they want 10-30 in both of them; a 15-40 oil is pretty much a universal engine oil anyways.
*Bump*

Morning Mud :flipoff2:

I run Lucas full synthetic 5w-40 in my 1997 80 series 1fz, and the 80 loves it.

I'm planning on towing with my 2uz, wondering if anyone thinks 5w-40 full synthetic would be to heavy, any thoughts? I was thinking heat and load of towing the 5w-40 would be a good fit.
 
*Bump*

Morning Mud :flipoff2:

I run Lucas full synthetic 5w-40 in my 1997 80 series 1fz, and the 80 loves it.

I'm planning on towing with my 2uz, wondering if anyone thinks 5w-40 full synthetic would be to heavy, any thoughts? I was thinking heat and load of towing the 5w-40 would be a good fit.
Old thread but I think that 5w40 is a good choice for warm weather, particularly if towing is involved. (Even more important when towing IMO is making sure that the radiator exterior coils are clean.)
 

Users who are viewing this thread

Back
Top Bottom