5w-20 Oil

[curik]

is Amsoil 0w-20 fine for me who lives at a place near the equator? Like 25-35 deg C all year round. Thanks!

[blacksan]

Originally Posted by curik

is Amsoil 0w-20 fine for me who lives at a place near the equator? Like 25-35 deg C all year round. Thanks!

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.

[hystria]

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.

it should be known, 5W-20 and 0W-20 have exactly the same properties in a warm engine. Only difference is when the engine is still cold, the 0W-20 will be a little more fluid. 5W-20 or 0W20 in very hot climate would be OK only if the engine is usually kept at low rpms.

[curik]

Originally Posted by hystria

it should be known, 5W-20 and 0W-20 have exactly the same properties in a warm engine. Only difference is when the engine is still cold, the 0W-20 will be a little more fluid. 5W-20 or 0W20 in very hot climate would be OK only if the engine is usually kept at low rpms.

Maybe that's why the Toyota Genuine Motor Oil here is 20w-50. Thats right! I am still on 20w-50!! So will it be OK to use 5w-20? I'm driving it normally with occasional redline.

[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!

[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....

[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.

[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.

[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.

[1stToyota]

Originally Posted by SilverGlow

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.

Link?
Show me where Toyota says do NOT use 0w-20 because of additive packages, but use 5w-20 and 5w-30 for the Yaris (1NZ-FE) because their additive packages pown 0w-20's...all I see in Toyota's TSB is that they will allow 5w-20 but NOT 0w-20 in the Yaris motor, and there have never been little footnotes about *additive packages* as far as I can tell, plus you've ALWAYS stated that the TSB states 5w-20 is okay, so "with that being said 0w-20 is okay because it performs exactly like 5w-20" without ever mentioning certain additive packages in certain oil brands being the deciding factor.

And why would you use Amsoil 0w-20? It's not API approved...hmmmm...but the Amsoil XL 5w-20 is API approved ...bet that's another reason why the Toyota TSB says yes to 5w-20 and no to 0w-20. Bottom line: Until the TSB says yes to 0w-20 it's wrong to use it, but keep using it year round in southern California.

You must wake up in a new world every day. How many times have you claimed that brand doesn't matter, that the cheapest discount synthetic will make an engine last just as long as an expensive synthetic, like Royal Purple? I'm not the one that's confused; I use API certified oil, and the proper viscosity, you don't.

[SilverGlow]

Originally Posted by 1stToyota

Link?
Show me where Toyota says do NOT use 0w-20 because of additive packages, but use 5w-20 and 5w-30 for the Yaris (1NZ-FE) because their additive packages pown 0w-20's...all I see in Toyota's TSB is that they will allow 5w-20 but NOT 0w-20 in the Yaris motor, and there have never been little footnotes about *additive packages* as far as I can tell, plus you've ALWAYS stated that the TSB states 5w-20 is okay, so "with that being said 0w-20 is okay because it performs exactly like 5w-20" without ever mentioning certain additive packages in certain oil brands being the deciding factor.

And why would you use Amsoil 0w-20? It's not API approved...hmmmm...but the Amsoil XL 5w-20 is API approved ...bet that's another reason why the Toyota TSB says yes to 5w-20 and no to 0w-20. Bottom line: Until the TSB says yes to 0w-20 it's wrong to use it, but keep using it year round in southern California.

You must wake up in a new world every day. How many times have you claimed that brand doesn't matter, that the cheapest discount synthetic will make an engine last just as long as an expensive synthetic, like Royal Purple? I'm not the one that's confused; I use API certified oil, and the proper viscosity, you don't.

You want a link? Go to AMSoil's web site. Go to Mobil1's website. You can run BOTH 0w-20's in your Yaris with absolute confidence. So why theirs and not others 0w-20?

ADDITIVE PACKAGE.

For example, this is why SL grade 5w-30 can be run in car X but not car Y, yet BOTH cars call for 5w-30, but not ANY 5w-30.

So if two oils are 5w-30 yet only one can be run in car X, why?

ADDITIVE PACKAGE differences.

There are cars out there that call for a particular brand of 5w-30 or 5w-20 or 0w-20 because not any brand will do even if the viscosity range is perfect....why? Additive package differences, again.

[SilverGlow]

Originally Posted by 1stToyota

Link?
You must wake up in a new world every day. How many times have you claimed that brand doesn't matter, that the cheapest discount synthetic will make an engine last just as long as an expensive synthetic, like Royal Purple? I'm not the one that's confused; I use API certified oil, and the proper viscosity, you don't.

I've said it many times and I will say it again: BRAND DOES NOT MATTER.

However this thread is about 0w-20 vs. 5w-20. In regard to this particular and specific issue, brand does in fact matter because not all brands provide the appropriate additive packages required by certain cars.

Now if one wants to use oils found in their manuals/TSBs (5w-20, 5w-30) in their Yaris then as long as the oil is either made by AMSoil or is API-SM certified, then BRAND DOES NOT MATTER.

For example, when I run 5w30 or 5w-20 the brand of the synthetic does not matter. But for 0w-20 the only brands I will use are Mobile1 and AMSoil. This is the EXCEPTION, and not the rule.

Hope this clarifies.