5w-20 Oil

[eTiMaGo]

well over in this part of the world the first number does not matter so much, as we do not get cold weather. I have 5w-50 in mine, though I am still trying to find out if we really need such thick oil or not

[curik]

Why do we need something high up like 50? My other car uses 5w-30 and it is running fine. So maybe 5w-20 is also all right?

[hystria]

second number is relative to ambiant temperature. Indonesia looks like it's quite warm overthere, isn't it ? If 40C is not an unusual temperature, then maybe the W50 is the right oil to be used. Then is the fact that you have those temps all year around, here in Canada 30-35C is quite frequent during summer time, but that lasts only 3-4 months a year. And we use either 0W20 or 5W30. Maybe one should also think in terms of number of warmer days over a year, considering one would do an oil change once or twice a year.

[curik]

Now I can see why. In my city it never reaches 40, maybe 35 at max. Using a thinner oil will benefit to fuel consumption right? So 5w-20 will be more efficient than say 5w-40?

[slvryaris]

Does the 5w-20 cost more?? I just had the oil in mine changed but I think they used 5w-30. The service thing earlier in the post said to use what is stated on your oil fill cap, but are thy saying you can also use 5W-20???

[brpnagger]

ok we are going to pick up our new hatch back this week. a few questions 1. when should i do the first oil change? 2. when i change the oil can i put in the mobil extended 15k mile syn oil? 3. What oil filter do you recommend if i am going to go 15k miles. We live in the mtns and in summer may-early sept the temp is around 80-85 at most. Wife will be using it for her job which she puts about 500 miles a week on it.

[thomasward00]

My car is at 3800 miles, i'm prob gonna wait until after my 15k mile service to switch to Mobil 1, so at 20k miles i'll switch, that will give everything plenty of time to break in.

[trini_per4mance]

hi guys, as you'll probably know already, my 07 yaris has 325,000 miles on it. and i was contemplating on switching from wal-mart super tech synthetic 5w30 oil to mobil 1 synthetic extended performance 5w30 oil. i usually change oil every 5000 miles, which is about every 2 weeks for me. but i would like to start using the mobil 1 synthetic extended performance 5w30 oil and change my oil every 15,000 miles instead. what do you guy thinks? your opinions would be greatly appreciated. thanx!

[SilverGlow]

Originally Posted by blacksan

I personally would stick with the 5W-20. The temperatures in your area warm enough that they would not warrant 0W-20 in my opinion and might not protect as well as 5W-20 under heavy loads and higher engine temperatures.

You have the same confusion (misunderstanding) that many have in regards to 0w-20 and 5w20.

The fact is, the ONLY difference is that the 0w protects better during very cold weather during start ups. As to operational oil temperatures (180f to 212f and above) the 5w and 0w both protect the same because they are both 20 weight on the high end of the viscosity range.

So at hot operational temperatures, 0w-20 and 5w-20 provide the same protection.

[1stToyota]

Originally Posted by SilverGlow

You have the same confusion (misunderstanding) that many have in regards to 0w-20 and 5w20.

The fact is, the ONLY difference is that the 0w protects better during very cold weather during start ups. As to operational oil temperatures (180f to 212f and above) the 5w and 0w both protect the same because they are both 20 weight on the high end of the viscosity range.

So at hot operational temperatures, 0w-20 and 5w-20 provide the same protection.

If that is so, that they offer the same protection, then why does Toyota's TSB absolutely refuse to list "0w-20" as a suitable viscosity for the Yaris engine, yet they have no problem with saying that "5w-20" IS okay for our Yaris? And before you say it's okay because Amsoil says it's okay, when Toyota says not okay, remember that Amsoil does NOT offer an API approved 0w-20...you'd have to go the XL 5w-20 or XL 5w-30 to get an API approved oil to keep from voiding warranties.

[Fenrizwolf]

Originally Posted by trini_per4mance

hi guys, as you'll probably know already, my 07 yaris has 325,000 miles on it. and i was contemplating on switching from wal-mart super tech synthetic 5w30 oil to mobil 1 synthetic extended performance 5w30 oil. i usually change oil every 5000 miles, which is about every 2 weeks for me. but i would like to start using the mobil 1 synthetic extended performance 5w30 oil and change my oil every 15,000 miles instead. what do you guy thinks? your opinions would be greatly appreciated. thanx!

I think that oil changes should be based on usage. Since you drive so many miles so fast I think you have def. been wasting money changing oil every 5k. If I were you I would start your 15k plan and check the oil intermittently for smell and color, and perhaps even extend further if you feel comfortable.
and fyi we havent broke 17k on our 07. lol

[Reddog99]

Originally Posted by trini_per4mance

hi guys, as you'll probably know already, my 07 yaris has 325,000 miles on it. and i was contemplating on switching from wal-mart super tech synthetic 5w30 oil to mobil 1 synthetic extended performance 5w30 oil. i usually change oil every 5000 miles, which is about every 2 weeks for me. but i would like to start using the mobil 1 synthetic extended performance 5w30 oil and change my oil every 15,000 miles instead. what do you guy thinks? your opinions would be greatly appreciated. thanx!

My guess is that 15,000 would be OK. I have routinely run 10,000 on Mobil 1 in my BMW motorcycle and Ranger pickup, and subsequent oil analysis shows that the oil is still good. The best advice would be to run 10,000 mi. and get it analyzed (try Blackstone Laboratories, they're very reliable). If the 10,000 mi. check comes back good, then run 15,000 and get another lab check. That way, you're not guessing, or relying on the opinion of someone who may not know any better than you.

BTW, I grew up in Hallandale in the '60's (730 NW 1st St.) I still remember the military convoys going down the road towards the south during the Cuban missile crisis. Needless to say, housing density has increased a bit since I lived there....

[YarisSedan]

i think royal purple is fully synthetic as well amsoil. Mobil one and some of the cheaper ones are just refined organic oils to the point where they can call it synthetic. But its not fully synthetic. Which is why amsoil oil is supose to be good for 25k miles garenteed.

[Ace]

Originally Posted by trini_per4mance

hi guys, as you'll probably know already, my 07 yaris has 325,000 miles on it. and i was contemplating on switching from wal-mart super tech synthetic 5w30 oil to mobil 1 synthetic extended performance 5w30 oil. i usually change oil every 5000 miles, which is about every 2 weeks for me. but i would like to start using the mobil 1 synthetic extended performance 5w30 oil and change my oil every 15,000 miles instead. what do you guy thinks? your opinions would be greatly appreciated. thanx!

I have a Toyota (with 200k miles) that I routinely change synthetic oil at 10k interval. The problem I have is once I hit 7.5k, I’ll need to put a half of quart of oil in. So if you let it go till 15k, you might want to watch it.

[1stToyota]

Originally Posted by YarisSedan

i think royal purple is fully synthetic as well amsoil. Mobil one and some of the cheaper ones are just refined organic oils to the point where they can call it synthetic. But its not fully synthetic. Which is why amsoil oil is supose to be good for 25k miles garenteed.

Amsoil's API approved XL series just says: "Beyond 3,000 miles" ...it's group III and not "fully synthetic" like their HP, SS and European Formula series.

[SilverGlow]

Originally Posted by 1stToyota

If that is so, that they offer the same protection, then why does Toyota's TSB absolutely refuse to list "0w-20" as a suitable viscosity for the Yaris engine, yet they have no problem with saying that "5w-20" IS okay for our Yaris? And before you say it's okay because Amsoil says it's okay, when Toyota says not okay, remember that Amsoil does NOT offer an API approved 0w-20...you'd have to go the XL 5w-20 or XL 5w-30 to get an API approved oil to keep from voiding warranties.

You are very, very confused. The reason toyota does that has NOTHING to do with 0w and 5w. The reason is the differences in additive packages. For example, I would not put any 0w-20 in my Yaris, however I would put in AMSoil 0w-20 and Mobil1 0w-20, but not others.

It's about the additive packages, and not the viscosity. Now as time goes on, more 0w-20 brands will be good for the Yaris, but today not all.

[deerebilt]

Originally Posted by blacksan

Just In case someone would like to read it.

my 08 sedan has the 1NZ-FE engine i dont see that engine listed on tsb there is a nz and a 1nz-fe series unless out motor is considered a NZ series. my oil cap and om says 5w-30

[deerebilt]

i dont believe amsoil is any better than anyone else. think they get thier base and additive products from someone else. amsoil doesnt drill oil. mobil does. if amsoil oil is so great why is it so hard to get. just like other mail order products over priced junk