Newbie question. What engine oil should I use?

Joined
Nov 15, 2011
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Hillsboro, OR.
Hey guys, Sorry for this newbie question. I'm still new to FJ80 world. What would be a good oil weight to use on my 92 FJ80 with 3FE motor? I live in Portland, OR. I am currently using Castrol GTX 10W-30 coz thats what the "manual said" but the motor got 201,000 miles already. is the 10W-30 good enough? let me know.

Thanks in advance,

AJM
 

brian

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its a tractor engine, the best oil for it is new oil, as in not used oil.
seriously though you're over thinking this.
most people run a 15-40 in higher milage motors.
 
Joined
Jun 8, 2007
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One thing to note, I recently used Dino oil in my last oil change after using synthetic for a long time and noticed that the engine gets up to temperature faster, maybe runs a little warmer, and that the engine downshifts more while going over overpasses compared to synthetic oil. With synthetic I was doing 5k mile filter changes and 10k mile oil changes...

I stopped checking mileage awhile back but am sure that a difference might be there too.
 
Joined
Dec 14, 2010
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Top of Idaho
You will get a huge number of opinions on preferred oil.

A decent 15W-40 dino or 5W-40 synthetic is a common theme, and one I support. Any further and people will just tell you their favorite brand.

I like the chevron Delo400 because Costco sells it for cheap.
 
Joined
Oct 3, 2006
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Medford, OR
Anywhere from 5w-40 to 15w-40. I prefer the heavier stuff. Dino or syn, doesn't really matter IMHO.

I stay away from high mileage oils. I've always heard that the seal swell can actually cause the seals to fail.
 
Joined
Aug 10, 2004
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Queens, NYC and sometimes Orlando, FL
You'll get million opinions on which oil is best, but just about anything off the shelf will work just fine :meh:

Synthetic or Conventional depends upon your budget, but just to give you an idea on how easy these engines are on oil, checkout my last Blackstone report using Toyota 10w-30 conventional (bottled by Exxon/Mobil)

blackstoneFZJ80at250k.jpg


My only suggestion is that you choose one oil brand (whatever it may be) and stick with it for the life of your engine :cool:

Reason being that different brands sometimes use additives that aren't compatible and can lead to sludge buildup :eek:
 
Joined
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You don't mention where you're located. I've been real happy with Toyota 5-30 and my local dealer has it cheap with an everyday price of $2.49 and filters at $4.95 (might want to check yours out). They even give me the big filter for that price because I'm the whacky LC 80 owner that's in there 5 times a month. The 'vultures' always thing I'm there to trade it in - you'd think they learned.

Mobil1 is great and run it in my wife and I's daily drivers (Armada and TL) but can't warrant $70 oil changes for as much as I baby the 80 and as often as I change her oil.
 

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