using 0w-40 synthetic oil ok?
Thread Starter
Senior Member
SL Member
Joined: Jul 2004
Posts: 760
using 0w-40 synthetic oil ok?
hey i was wondering if our car is safe using 0w-40?
ive used 5w-30 mobil1 for the past few months and now i just recently switched to 5w-20, possibly getting better fuel mileage from what i slightly notice..
are 0w-40 oils beneficial compare to 5w-20 and 30?
thanks
ive used 5w-30 mobil1 for the past few months and now i just recently switched to 5w-20, possibly getting better fuel mileage from what i slightly notice..
are 0w-40 oils beneficial compare to 5w-20 and 30?
thanks
Senior Member
SL Member
Joined: Dec 2004
Posts: 768
From: Garden Grove, CA
lol it won't hurt an '05 tC at all, '06 and '05s are basically the same. What I meant is I have friends who have factory recomendation of 5-30 oil that run 5-20. It's better on mileage and it makes the car run a little lighter.
Member
SL Member
Joined: Feb 2006
Posts: 70
From: Anaheim Hills California
actually the only year that can run 0w-30 which im running is the 07 engines. They added oil squirters into the cylinders,previous years dont feature this.I do get slight better gas mileage and i live in california. When i useto work at lexus i could get it for free and its damn exspensive stuff(around 8.00 a qt i think) Toyota fully synthetic 0W-30 thats used in the new LS460s
Senior Member
SL Member
Team ScioNRG
Joined: Sep 2005
Posts: 3,201
From: Norwalk, CT
2005 tC - 5W-30
2006 tC - 5W-20
2007 tC - 5W-20 (or 0W-20)
DO NOT use 0W-40 no matter what year you have. I see that you are down in GA. It stays and gets pretty hot down there. The 0W is too light weight of an oil for you. You use the 0W in the north as a lighter weight oil during the winter. The 40 is too heavy for you even down in the south. It can cause sludging issues with the engine and can do other damage to your engine as it is so thick that it will not lubricate well. Stick to the factory specs.
2006 tC - 5W-20
2007 tC - 5W-20 (or 0W-20)
DO NOT use 0W-40 no matter what year you have. I see that you are down in GA. It stays and gets pretty hot down there. The 0W is too light weight of an oil for you. You use the 0W in the north as a lighter weight oil during the winter. The 40 is too heavy for you even down in the south. It can cause sludging issues with the engine and can do other damage to your engine as it is so thick that it will not lubricate well. Stick to the factory specs.
Senior Member
SL Member
Joined: Mar 2006
Posts: 320
From: SouthEast
Just pick one and stay with it . NEVER change weights in oil if you can . Being in Ga , what the Hell do you want to use 0-40 for anyway ? Damn . 10-30 synthetic is perfect in most climates , especially yours ! I am in Va and only run 10-30 synthetic . It was made for Georgia
Senior Member
SL Member
Joined: Jun 2006
Posts: 7,862
From: Lurking Inside Your Garage!
Originally Posted by Spect2K3
2005 tC - 5W-30
2006 tC - 5W-20
2007 tC - 5W-20 (or 0W-20)
DO NOT use 0W-40 no matter what year you have. I see that you are down in GA. It stays and gets pretty hot down there. The 0W is too light weight of an oil for you. You use the 0W in the north as a lighter weight oil during the winter. The 40 is too heavy for you even down in the south. It can cause sludging issues with the engine and can do other damage to your engine as it is so thick that it will not lubricate well. Stick to the factory specs.
2006 tC - 5W-20
2007 tC - 5W-20 (or 0W-20)
DO NOT use 0W-40 no matter what year you have. I see that you are down in GA. It stays and gets pretty hot down there. The 0W is too light weight of an oil for you. You use the 0W in the north as a lighter weight oil during the winter. The 40 is too heavy for you even down in the south. It can cause sludging issues with the engine and can do other damage to your engine as it is so thick that it will not lubricate well. Stick to the factory specs.
Mine was Born April 06 - says 5W-30 not 5W-20.....
Senior Member
SL Member
Joined: Mar 2006
Posts: 420
From: New Jersey
Originally Posted by TeeCizzle
Originally Posted by Spect2K3
2005 tC - 5W-30
2006 tC - 5W-20
2007 tC - 5W-20 (or 0W-20)
DO NOT use 0W-40 no matter what year you have. I see that you are down in GA. It stays and gets pretty hot down there. The 0W is too light weight of an oil for you. You use the 0W in the north as a lighter weight oil during the winter. The 40 is too heavy for you even down in the south. It can cause sludging issues with the engine and can do other damage to your engine as it is so thick that it will not lubricate well. Stick to the factory specs.
2006 tC - 5W-20
2007 tC - 5W-20 (or 0W-20)
DO NOT use 0W-40 no matter what year you have. I see that you are down in GA. It stays and gets pretty hot down there. The 0W is too light weight of an oil for you. You use the 0W in the north as a lighter weight oil during the winter. The 40 is too heavy for you even down in the south. It can cause sludging issues with the engine and can do other damage to your engine as it is so thick that it will not lubricate well. Stick to the factory specs.
Mine was Born April 06 - says 5W-30 not 5W-20.....
I have a 2006 tC, and use 5w-20 synthetic Pennzoil Platinum.
Here is a link to a Used Oil Analysis I had done to prove that the oil is doing great: https://www.scionlife.com/forums/vie...439728#2439728
Senior Member
SL Member
Team ScioNRG
Joined: Sep 2005
Posts: 3,201
From: Norwalk, CT
^^ thanks.
Like he said, I get those numbers from a TSB that was put out by toyota. The 05 remains the same. The 06 should now take 5w-20 (even the dealers will put that in an 06), and of course the 07 was made with the correct oil filler cap.
Why did they change the 06 and not the 05? I dunno, but they did. Check out his link above ^^^ or look up the tsb on your own. This has already been discussed A LOT however
Like he said, I get those numbers from a TSB that was put out by toyota. The 05 remains the same. The 06 should now take 5w-20 (even the dealers will put that in an 06), and of course the 07 was made with the correct oil filler cap.
Why did they change the 06 and not the 05? I dunno, but they did. Check out his link above ^^^ or look up the tsb on your own. This has already been discussed A LOT however
Senior Member
SL Member
Joined: Jun 2006
Posts: 7,862
From: Lurking Inside Your Garage!
Originally Posted by nyr197
Originally Posted by TeeCizzle
Originally Posted by Spect2K3
2005 tC - 5W-30
2006 tC - 5W-20
2007 tC - 5W-20 (or 0W-20)
DO NOT use 0W-40 no matter what year you have. I see that you are down in GA. It stays and gets pretty hot down there. The 0W is too light weight of an oil for you. You use the 0W in the north as a lighter weight oil during the winter. The 40 is too heavy for you even down in the south. It can cause sludging issues with the engine and can do other damage to your engine as it is so thick that it will not lubricate well. Stick to the factory specs.
2006 tC - 5W-20
2007 tC - 5W-20 (or 0W-20)
DO NOT use 0W-40 no matter what year you have. I see that you are down in GA. It stays and gets pretty hot down there. The 0W is too light weight of an oil for you. You use the 0W in the north as a lighter weight oil during the winter. The 40 is too heavy for you even down in the south. It can cause sludging issues with the engine and can do other damage to your engine as it is so thick that it will not lubricate well. Stick to the factory specs.
Mine was Born April 06 - says 5W-30 not 5W-20.....
I have a 2006 tC, and use 5w-20 synthetic Pennzoil Platinum.
Here is a link to a Used Oil Analysis I had done to prove that the oil is doing great: https://www.scionlife.com/forums/vie...439728#2439728
Senior Member
SL Member
Team ScioNRG
Joined: Sep 2005
Posts: 3,201
From: Norwalk, CT
It's true that the 2 oils are very similar, but regardless, they put out a TSB to solve a problem. They don't just put out TSBs for the fun of it. OF COURSE the manual is not going to be updated for the TSB, what do you expect, every dealer to come find you and hand you a new manual? lol But as we said, the two are very similar, but they obviously put out the TSB for a reason, so i'll be putting 5w-20 in my 06
Thread
Thread Starter
Forum
Replies
Last Post
crimson_sinn
Introduction Forum
1
Sep 25, 2015 09:41 PM
Klashan
Scion tC 1G Owners Lounge
7
Sep 24, 2015 12:39 PM
vi3tb0i09
PPC: Engine / Drivetrain
2
Sep 23, 2015 08:32 PM
