Hi guys,

I have some 0W-20 Toyota Synthetic lying around and was wondering what you all think about using it in my 22R. Thanks.

 

I searched around a bit and for anyone else thinking of this it seems the 20W oil is too thin for these motors. So I went and bought some high mileage 10W-30 for 8 dollars for 5 Quarts! Thank you Kmart.

 

Yeah, I agree that 0W-20 is too thin. You don't want to risk having low oil pressure and damage to the engine just because you had this stuff lying around and wanted to use it.

Good call!

 

I pretty much use 20/50 in my 22R series engines

I am curious how that oil might work on a fresh rebuild with all the tolerances fresh and tight .

 

I would agree that's a bit light. Manual calls for 10w-30. I run 10w-40 which I believe is also in the manual for certain temperature ranges. If you don't want to waste that bottle of thinner oil maybe just use it for the last quart of your next few oil changes.

 

i was told years ago, by an old fleet mechanic, that if engine had overhead cams, with no bearings (cam just rest on the aluminum head in 20-22r engines) to only run 5w30 something to do with the thinner oil properly lubricating the aluminum races in head. I have always used 5w30. big leaky v8's 20w50

 

20w-50 is probably fine in a warmer climate, but if it ever gets cold I'd steer clear. I just don't like the idea of firing off a OHC engine with the thick oil in it. I'm here in the PNW so it is fairly mild but we usually get a cold spell through the winter, I've always ran 10w-40 in my 22/20r engines and never had a problem. 10w-30 would probably be fine too especially if your engine is fresh.

As for the 0w-20, I don't think thats a good idea either. If I'm correct thats synthetic so probably don't want to mix it and usually its not great to switch higher mileage engines over to synthetic. Besides the fact its a good bit thinner than the usual oil.

 

I've run 20w50 in pre-90s 4 cylinders, except the coldest months I'll drop to 10w40.

4 cyls 90-00 i usually run 5w30. Ow20 is typically for newer cars.

My 88 with its new block i run 10w40, 10w30 in the cold, but my truck sleeps in a garage. If it lived outside I'd use 5w30 when it's freezing out only.

 

0W-20 is way to thin. You could use it if you were just wondering where all of your worn oil seals are at. I put 10W-30 in my old Runner when I first brought it home and saw a drop in my oil pressure that I didn't like. Found an oil chance receipt in the glove box that had 10W-40 on it so, assuming that the PO had always ran that, I put it in next oil change and got better oil pressure. I have a valve seal or two that leak a little causing it to smoke on startup for a couple minutes after it's been sitting for a day. I'm going to move up to 15W-40 as it will be a little thicker at low temperatures.