What Oil do you guys recomend/Use ?

[SilverGlow]

Originally Posted by 1stToyota

The way I heard it explained from an expert was that the wider the viscosity the more polymers are needed and the harder it is for the molecules to stretch...something like that...under stress and heat the 5w-30 performs better.

Not according to Toyota engineeers....thiner means better circulation and faster....

[gid]

I seen a T.V. commercial for VALVOLINE " SYNPOWER " that it gives 4 times better protection to your engine than MOBIL 1 . True ?

[1stToyota]

Originally Posted by SilverGlow

Not according to Toyota engineeers....thiner means better circulation and faster....

You missed the part about the extra snake oil polymers that are required to get the wider viscosity rating and how they react under stress and heat, besides, owner's manual states 5w30 not 0w30 for the Yaris

[SilverGlow]

Originally Posted by 1stToyota

You missed the part about the extra snake oil polymers that are required to get the wider viscosity rating and how they react under stress and heat, besides, owner's manual states 5w30 not 0w30 for the Yaris

Your friend is not the "expert" you thought ;-)

This is because Amsoil and Mobil1 and all the others disagree with him. You see, Amsoil is the best and it makes 0W-20 and 0w-30 and tens of thousands of cars using it are not failing. In addition, UOA for those oils shows very, very low wear...so much for the "molecues cannot stretch" comment.

I would suggest we all pay a visit to BobIsTheOilGuy.com and read the forums on oil there....a lot of superstitions will die if you do...at least they did for me.

[1stToyota]

Originally Posted by SilverGlow

Your friend is not the "expert" you thought ;-)

This is because Amsoil and Mobil1 and all the others disagree with him. You see, Amsoil is the best and it makes 0W-20 and 0w-30 and tens of thousands of cars using it are not failing. In addition, UOA for those oils shows very, very low wear...so much for the "molecues cannot stretch" comment.

I would suggest we all pay a visit to BobIsTheOilGuy.com and read the forums on oil there....a lot of superstitions will die if you do...at least they did for me.

You can start by reading your manual and your oil cap (5w30 only) and your Toyota TSBs, and then you can finish off by stepping into the LS2 and GTO forums to inform the regs that you think SgtGeek doesn't know about motor oils and UOAs

[TheSilkySmooth]

Originally Posted by SilverGlow

Your friend is not the "expert" you thought ;-)

This is because Amsoil and Mobil1 and all the others disagree with him. You see, Amsoil is the best and it makes 0W-20 and 0w-30 and tens of thousands of cars using it are not failing. In addition, UOA for those oils shows very, very low wear...so much for the "molecues cannot stretch" comment.

I would suggest we all pay a visit to BobIsTheOilGuy.com and read the forums on oil there....a lot of superstitions will die if you do...at least they did for me.

I am sorry you did not read or understand the email I left. What is viscosity of 0w at 50C and 75 C you will see it is much less than the 5W. The engine oil may not run at 100c. You are not a chemist. An who is bob the oil guy - like bill nye the science guy I see on tv? You will not get correct information with proper scientific method on this a chat forum. I see chest beating like religious fanatics whcih is a dangerous person

[TheSilkySmooth]

Originally Posted by SilverGlow

If you're a chemist then you should know better....the 20 in 0W-20 and 5W-20 provide the same protection at full operating temperature (around 212 degrees F).

It is the first number, the 0 in 0W-20 that is thinner at cold temperatures then 5W.

And Gid yes you are correct, the Yaris engine is not TSB'd for 0w, but rather for 5W-20. However I do use 0w because the UOA reports I've seen from other Yaris owners show the same wear metals as those that used 5W-20.

You are dangerouse person with a little knowledge to be bad, but not enough education to make interpolation. You may have to study some more - This Bob OIly Guy is no Koran!

[1stToyota]

Originally Posted by SilverGlow

I'm convinced that as long as (1) the oil has the latest ratings (2) is synthetic, (3) correct viscosity and (4) mated with a decent filter, your car will last 300,000+ miles

...you claim that 5w20 is "TSB'd" for the Yaris (you're thinking Scion XD?), and you wrote that you use 0w (wouldn't matter if a 20 or 30 followed because my Yaris owner's states 5w30 only)...so, to follow your rule number (3) start using the "correct viscosity" if you're still expecting to see that 300k miles on your motor.

[gid]

there is an Technical Service Bulletin by TOYOTA giving the o.k. for 5w-20 in '06 and beyond . Got the T.S.B. sent via e-mail from the assistant manager of service department where we bought the '08 YARIS sedan , made copy of it and put with our paperwork . We're using PENNZOIL Platinum 5w-20 in it for this stretch , haven't decided to continue it's use . So , call your TOYOTA service center for verification of T.S.B. in their computer system , number is EG018-06 .

[TheRealEnth]

Guys Guys....... Its just oil =D! Lets just list the best 5 and be done with it

[1stToyota]

Originally Posted by gid

there is an Technical Service Bulletin by TOYOTA giving the o.k. for 5w-20 in '06 and beyond . Got the T.S.B. sent via e-mail from the assistant manager of service department where we bought the '08 YARIS sedan , made copy of it and put with our paperwork . We're using PENNZOIL Platinum 5w-20 in it for this stretch , haven't decided to continue it's use . So , call your TOYOTA service center for verification of T.S.B. in their computer system , number is EG018-06 .

I looked at the TSB on NapaFix, 5w-20 is listed for Toyota and Scion, 0w-20 is listed for the 2AZ-FE engine, not the Yaris 1NZ-FE engine...their *note* at the start of the article seems kind of confusing though:

Quote: "The recommended viscosity grade for this oil differs according to vehicle model. Use the recommended grade specified on the oil filler cap or in the Repair Manual or Owner’s Manual for each vehicle."

[bubaa]

iam gonna try the greddy 5w-30 on my 4age 20v blacktop to see how it works if i like the ayri will have it too

[SilverGlow]

Originally Posted by 1stToyota

...you claim that 5w20 is "TSB'd" for the Yaris (you're thinking Scion XD?), and you wrote that you use 0w (wouldn't matter if a 20 or 30 followed because my Yaris owner's states 5w30 only)...so, to follow your rule number (3) start using the "correct viscosity" if you're still expecting to see that 300k miles on your motor.

You're confused, but that's okay. I do follow my rules. The TSB shows 20 weight for our engines, and I use 20 weight, and the UOA's show less wear then if I used 30 weight. Sure, the filler cap shows 30 weight, BUT the TSB which came out later says otherwise. I'm sticking with the TSB. As to 0W weight, I use that because at full operational temperature 0w-20 and 5w-20 protect exactly the same; hence the 20 part of those grades. The 0w on cold mornings flows to the upper parts of thje engine faster and gets to more parts of the internals faster.

[gid]

Originally Posted by 1stToyota

I looked at the TSB on NapaFix, 5w-20 is listed for Toyota and Scion, 0w-20 is listed for the 2AZ-FE engine, not the Yaris 1NZ-FE engine...their *note* at the start of the article seems kind of confusing though:

Quote: "The recommended viscosity grade for this oil differs according to vehicle model. Use the recommended grade specified on the oil filler cap or in the Repair Manual or Owner’s Manual for each vehicle."

.

[1stToyota]

Originally Posted by SilverGlow

You're confused, but that's okay. I do follow my rules. The TSB shows 20 weight for our engines, and I use 20 weight, and the UOA's show less wear then if I used 30 weight. Sure, the filler cap shows 30 weight, BUT the TSB which came out later says otherwise. I'm sticking with the TSB. As to 0W weight, I use that because at full operational temperature 0w-20 and 5w-20 protect exactly the same; hence the 20 part of those grades. The 0w on cold mornings flows to the upper parts of thje engine faster and gets to more parts of the internals faster.

It's okay that you're too dense to read...the TSB *notes* the 0w-20 is for the 2AZ-FE engine, not the Yaris 1NZ-FE engine...you did a XD motor swap in your Yaris?!

And if you live in CA why worry about those "cold mornings flows"...besides, in that TSB that you're swearing by, take note of the note @ the top of the page:

"The recommended viscosity grade for this oil differs according to vehicle model. Use the recommended grade specified on the oil filler cap or in the Repair Manual or Owner’s Manual for each vehicle."

[1stToyota]

Originally Posted by gid

.

Sorry. When I wrote 5w-20 I was actually in agreement with you. The 0w-20 statement from the TSB was for those that might be confused into thinking that what goes for the XD engine somehow goes for the Yaris engine.

[ztrack157]

I personally run 5-30 Royal Triton (Purple). But I was just wondering is anyone using Redline Oils here? Mobil One, Ams, and Rp are three of the best you can get any of them and it would be a wise choice. Ams just makes some interesting blends some that last as long as 25,000 miles so essentially a once a year change for most.

[gid]

Originally Posted by 1stToyota

Sorry. When I wrote 5w-20 I was actually in agreement with you. The 0w-20 statement from the TSB was for those that might be confused into thinking that what goes for the XD engine somehow goes for the Yaris engine.

very seldom do I have someone agree in this place .