1991 Toyota Land Cruiser 3FE oil reccomendation

[CARJ]

I just bought a 91 Toyota FJ80 with the 3FE engine. It has 174k miles on it. The previous owner ran Mobil 1 10w-40 but only changed 5 quarts of the 8.5 during each oil change. Weird.

The manual says to use 10w-30. Googling, I find people running 10w-30, 15w-40 and 20w-50. I want to use conventional oil, since from what I have read, this engine was never intended to run synthetic. I plan to change every 3,000 miles (yes, excessive, but I am that way with maintenance). I live in southern CA.

What weight do you think I should run?

 

[45ACP]

Unless there is something i am unaware of with that engine, my first thought would be 5W-30 conventional. Especially, PRIMARILY due to the 3000 miles you change it. Maybe even Supertech 5W-30. $11.84 5 quarts at Walmart.

And, i just re-read the context of the question.. back when that Land Cruiser was made, 10W-30 *MAYBE* had an advantage over "stability" (shear stability? Thermal breakdown?) over 5W-30. Not anymore. The SN oil of today, even that Supertech which is a good oil, will NOT shear.. at least as far as i know it wont. So, coming from a 10W-30, my first thought really is 5W-30 here. If the previous owner used 10W-40 then.. its up to you to stick with that, or maybe try a different grade. You have many choices here. The application does not sound particularly demanding. heat also *shouldnt* factor in too much ? ? ?

I may not be aware of what oil that engine "likes" but if it works then it works....

Nice Land Cruiser!

 

[addyguy]

I'd run the least-expensive 15W-40 HDEO you can find.

BTW, nice rig - rare as heck up here!

 

[CARJ]

 

[45ACP]

Originally Posted By: CARJ

I now change my recommendation to "stick with 10W-40."

I like that! And Is that a snorkel? Do you go river fording with this? Looks so fun!

 

[typ901]

Nice and clean FJ-80! One of my favorites. Maybe a nice 5w-30HM? That 3FE has to be working hard in there. Did I miss any info. about consumption? Oil change of 5qt. only is odd-people do have some interesting quirks.

 

[CARJ]

Yes, that is a Toyota snorkel, bought from Japan. I don't ford rivers. A snorkel also helps in the desert. It keeps the air intake out of the dust.

I've only had the Cruiser for 5 days so I can't comment on consumption. There is an oil leak (looks like the pan). After doing some reading, I went and bought some Supertech 20w-50 (it get's hot here) but now I am second guessing that choice.

 

[45ACP]

Originally Posted By: CARJ
Yes, that is a Toyota snorkel, bought from Japan. I don't ford rivers. A snorkel also helps in the desert. It keeps the air intake out of the dust.

I've only had the Cruiser for 5 days so I can't comment on consumption. There is an oil leak (looks like the pan). After doing some reading, I went and bought some Supertech 20w-50 (it get's hot here) but now I am second guessing that choice.


Supertech 10W-40 is rather thin, and should work well here.

Maybe exchange?

Also.. how bad is that leak. 20W-50 ay help, may not. Pan leak would be a bit difficult. i have successfully fixed oil pan leaks with J-B Weld. I am sure others here have as well.

Rusted pan? Or just a hole? Or gasket?

 

[Y_K]

Sorry, if it is a redundant reference, but this forum may be of quite some help

 

[CARJ]

Y_K, I am very aware of Mud. Thanks.

45ACP, I think it is a pan gasket. That's at least the first thing I will change.

 

[typ901]

Originally Posted By: CARJ
Yes, that is a Toyota snorkel, bought from Japan. I don't ford rivers. A snorkel also helps in the desert. It keeps the air intake out of the dust.

I've only had the Cruiser for 5 days so I can't comment on consumption.



I asked as I am wondering if that is why only 5 of 8.5 went in at change time. Meaning that it burned the other 3.5 off, and previous owner did not feel the need to drain off the oil he replaced during OCI.

 

[CARJ]

No, the guy claimed that oil doesn't break down and that his grandfather taught him to do that. Checking the dipstick, the oil level is just right.

 

[HK_Ace]

His grandpa was probably cheap and didn't want to buy more than a 5 quart jug from wherever.

 

[3311]

I would use Supertech 15w40 over the 10w40 and 20w50 flavors. Better add pack then both. And not super thick like the 20w50.

Great Truck! I really love these 4wd "utilitarian", for lack of a better word, trucks. There was a poster with a nice looking Land Rover a few weeks ago that looked great as well.

A 10w30 or 10w40 HM oil like Maxlife, Pennzoil, Supertech etc. are great choices as well and may help with the leak.

 

[Toy4x4]

Is this your first Toyota? If so, welcome to the family!

I don't think running syn will do any harm. Read my sig for what I use here in HOT AZ and I change every 5k which ends up being ~twice a year (less hassle).

 

[3311]

Originally Posted By: Toy4x4
Is this your first Toyota? If so, welcome to the family!

I don't think running syn will do any harm. Read my sig for what I use here in HOT AZ and I change every 5k which ends up being ~twice a year (less hassle).


I agree if he wanted to run a synthetic I think M1HM is excellent stuff.

 

[Jarlaxle]

Several points:
One, this does NOT have a roller cam, does it? Considering that...I'd probably use 15W-40 for the extra ZDDP.

Two, be aware this engine is ANCIENT! The F/FE series of "Toyota" engines are actually direct copies (the head gaskets interchange) of the old 4-bearing Chevrolet "Stovebolt" six. The 3F-E is essentially a 1930's design dressed up with modern (for its time) EFI.

 

[JasonBraswell]

This is a 1FZ-F engine. Inline-6 and pretty much a tank.

Use a heavy oil xw-40. I used a M1 High Mileage 10w-40 when I had a 97 LC. The valve guides in these are designed to burn a little oil.

 

[NicaJeep]

Congrats on your fj80....those things are awesome. In Nicaragua, my Dad had one and put over 350,000 miles on it!!! Don't what grade oil, but i am sure it was conventional oil. It was a Turbo Diesel I6 engine.

 

[typ901]

Originally Posted By: JasonBraswell
This is a 1FZ-F engine. Inline-6 and pretty much a tank.

Use a heavy oil xw-40. I used a M1 High Mileage 10w-40 when I had a 97 LC. The valve guides in these are designed to burn a little oil.


I thought the 1-FZ started in '93 for the 80-Series Land Cruisers. From '90-'92 was the 3-FE.