Heavier oil in my 22RE

[HINO SG]

I'm really low on cash at the moment and my 1st Gen. 4Runner needs an oil change-forgot how many miles (a lot) and over a quart low.

I've got a jug of 20W-50 sitting around and it's summer now.

Should I use it?

 

[NorthernWoodsman]

Go for it.

I'm really low on cash at the moment and my 1st Gen. 4Runner needs an oil change-forgot how many miles (a lot) and over a quart low.

I've got a jug of 20W-50 sitting around and it's summer now.

Should I use it?

I used to have an '85 4x4 truck with the 22RE and always ran 20w50 in the summer and never had a problem. sold it with over 200,000 and it ran better than most peoples trucks with lower miles. well, that's what the test drivers/potential buyers always said.

 

[HINO SG]

I used to have an '85 4x4 truck with the 22RE and always ran 20w50 in the summer and never had a problem. sold it with over 200,000 and it ran better than most peoples trucks with lower miles. well, that's what the test drivers/potential buyers always said.

completely what I'm thinking, in theory the heavier oil will affect fuel economy but not very worried about that.

I work the engine pretty hard, seems like the 20W-50 in the summer should be a good thing.

 

[Scenic WonderRunner]

Here is an Oil site I enjoy with lot's of good info.

http://www.bobistheoilguy.com/cms/index.php?option=com_content&view=frontpage&Itemid=1


I have run 20w-50 in my Porsche 911 for 30+ years.



.

 

[slus]

I just switched from 10w30 to 20w50 in my 22r. Runs quieter, oil pressure at hot idle stays up where it should instead of falling on its face, and there has been no noticeable decrease in MPG. I'm gonna use it all summer.

 

[NorthernWoodsman]

I never noticed any problems...

completely what I'm thinking, in theory the heavier oil will affect fuel economy but not very worried about that.

I work the engine pretty hard, seems like the 20W-50 in the summer should be a good thing.

…with my mpg's. My old truck seemed to consistently get around 20-21 on the highway with 30-9.50-15 bfg all-terrain tires. city was ~17mpg. It was the same with 10w40.

I don't know about the oil pressure. my old truck didn't have a gauge.

If I hadn't just done an oil change I would be putting in 20w50 for summer myself. I drive very few miles currently so I'll run the 10w40 through the summer and change it with the same for fall.

If you live in a warm climate you could theoretically run 20w50 year round.

 

[djrez4]

I just put 10w40 in for my last oil change.

You'll be fine.

 

[Desert Dan]

No Worries. On a new engine maybe but an older engine no problem

Multi-weight oils (such as 10W-30) are a new invention made possible by adding polymers to oil. The polymers allow the oil to have different weights at different temperatures. The first number indicates the viscosity of the oil at a cold temperature, while the second number indicates the viscosity at operating temperature

http://auto.howstuffworks.com/fuel-efficiency/fuel-consumption/question1641.htm

 

[Martinjmpr]

Back when I used to change my own oil and drove a lot (like over 2,000 miles/month in some months) I would run 10w30 in the winter and 20w50 in the summer. Worked great.

 

[Pskhaat]

I was once told by a GMI engineer/professor at Uni that they (quite literally) would run the SAE weight of the oil by the maximum ambient operating temperature in centigrade. Never knew if he was actually joking or not. The SAE weight figure has nothing to do with temperature centigrade but always stuck with me for some reason:

10-30 would then be for 50F-86F days
20-50 would then be for 68F-122F days
0-20 would then be for Freezing-68F days

It was nothing more than a "cute" convention.