Toyota Nation Forum banner

Got freaked out, changed oil

8019 Views 48 Replies 22 Participants Last post by  pdxyota
So 1000 miles ago I changed my oil to Mobil 1 5w20/ Wix Filter. A friend of mine started telling me that I'm going to put a bunch of wear on the motor running 5w20. I read a few posts and ended up changing out the oil and filter. I was probably suckered but I ended up using Royal Purple 5w30 and a Purolator Pure One oversized filter. I can't tell the difference but I'm not as paranoid about running that light of an oil in the truck anymore. Those Purolator filters look pretty well built. Oh well, live and learn.
1 - 20 of 49 Posts
Just out of curiosity, why would you use a weight of oil other than what the manufacturer specifies (i.e., the 5w20)?
Didn't Toyota just come out and say using 5w20 was ok? I read it here.
I don't know if they did or didn't. I figure I am always safe using the factory recommendation though as it appears in the owners manual. Something goes blooey and they can't blame it on me using the wrong weight oil. My two cents, for what it is worth.
ILSAC GF–4 SAE 5W–20​
This oil has been set as the Toyota genuine engine oil, starting in February 2006 for
the U.S. This oil is superior in terms of fuel economy, engine protection, and cold
starting performance.​
ILSAC GF–4 SAE 0W–20​
This oil has even better fuel efficiency and cold starting performance than 5W–20. Initial
application for 0W–20 is in the 2006 model year 2AZ–FE engine and will be used in new
engines to be developed.​
ENGINE​
Introduction
Applicable
Vehicles
Warranty​
Information

Marc M
See less See more
So 1000 miles ago I changed my oil to Mobil 1 5w20/ Wix Filter. A friend of mine started telling me that I'm going to put a bunch of wear on the motor running 5w20. I read a few posts and ended up changing out the oil and filter. I was probably suckered but I ended up using Royal Purple 5w30 and a Purolator Pure One oversized filter. I can't tell the difference but I'm not as paranoid about running that light of an oil in the truck anymore. Those Purolator filters look pretty well built. Oh well, live and learn.
Your friend is a dumbass...you not going to hurt anything with 5W30 but maybe gas milage...next time run 5W20 or 0W20 either way both oils are the same when it up to opperating temps. The 0W20 just flows alittle qwicker.

Mine requires 5W30 so i run 0W30, again just better flow at startup.
ILSAC GF–4 SAE 5W–20​

This oil has been set as the Toyota genuine engine oil, starting in February 2006 for
the U.S. This oil is superior in terms of fuel economy, engine protection, and cold
starting performance.
ILSAC GF–4 SAE 0W–20
This oil has even better fuel efficiency and cold starting performance than 5W–20. Initial
application for 0W–20 is in the 2006 model year 2AZ–FE engine and will be used in new
engines to be developed.
ENGINE
Introduction
Applicable
Vehicles
Warranty
Information

Marc M
That is interesting info, Marc. I like the fuel efficiency part. What is the source for it?
Where can you buy 0W oil? I've looked at the Walmarts and auto stores to no avail AND they said that can't even order it. Do you have to get it from a dealership?
OK. Did some digging and the source of Marc's info appears to be TSB EG018-06 from March 29, 2006.

PLEASE NOTE: The 0W-20 oil is NOT certified in that TSB to be compatible with the 2TR-FE or 1GR-FE engines in the Tacoma.
From the 2008 Tacoma Owners Manual:

2TR-FE: 5W20 or 0W20 Recommended
1GR-FE: 5W30 Recommended

Doesn't mean you shouldn't use 5W20 or 0W20, just what the owners manual says, for reference.

Jeff
0w-20 is available from the dealer, it is a fully synthetic oil...comes in red bottles. Mobil 1 makes it as well, I'm running it right now in my Tundra.

:Bruce:
Pennzoil also makes a 0W-20 Platinum.

I think you had a better combo the first time. Royal Purple is all hype. The Purlator One filters are built like a brick, they have the highest filter efficiency and one of the worst (if not the worst) flow ratings.

Most car companies are running 20 weight oils so they can have commercials that say "20 out of 25 cars with an EPA rating of 30 mpg plus" Only time will tell how each motor will react to a thinner oil. They didn't change anything on the 1GR-FE in March 2006 so why the change in recomendation?

That EPA number on the sticker sells cars and trucks. If 20 weight oil gets them more sales over the next guy beleive they will make the change. I do find it interesting that despite that TSB back in 2006 the manual still recommends 5W-30 in the V6.

Many people have made the switch. Your car isn't going to blow up because you ran 20 wieght oil for 5000 miles. I don't use it because of the ticking issue. Any thin 30 weight oils and my truck sounds like a diesel.

I stick to GC (thick 0W-30) and Pennzoil Platinum in the summer (decently thick at operating temp 5W-30).
See less See more
Wasn't the Oil related TSB for the Inline 4 cylinder only? I thought the 4.0 V6 was to be ran on 5w30 as it suggests in the owners manual?
2
Nope. In your 2005 manual it does suggest 5W-30. In the middle of 2006 they came out with the TSB below. And now, if what you guys are saying about the 2008 manual is true... they might have retracted that recommendation and gone back to 5W-30.


See less See more
I already know my friend is a dumbass. He's been that way for 30 years. LOL. I will say this, the Mobil 1 that I drained was alread dirty but that's a good thing right? Doesn't that mean the oil is doing it's job? Well, I will leave the combo I have in there now and see what happens. I think I will send a sample to Blackstone after 6K miles and take it from there.
I use 10w-40 in the winter and 20w-50 in the summer...
^An oil study is the only way to know for sure.
i just dont get what the arguing is about. the v-6 tacoma calls for 5w-30 it says it right on the oil cap on your motor. there is no reason to try different grades of oil.
I use 10w-40 in the winter and 20w-50 in the summer...
:confused:u are running way thicker oil then recomended5-30 this is not the old days were thicker was thought to be better. the new engines have way tighter tolerances and need thinner oil. do what u want but if your motor blows up and toyota tests the oil u have in it. they are going to laugh and u and u will be buying a new engine.
1 - 20 of 49 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Top