Like early 2000 sedans and suvs that said use 5 -30 has Toyota ever back specked 0- 30 (does that exist?)
or 0-20?
or 0-20?
Last edited:
Has Toyota ever back spec'd thinner oils?
- Thread starter edwardh1
- Start date
- Status
Halfway down this page:
https://bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2857636
https://bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=2857636
2004 v6 highlander
There was a post a few days back where a bitog'r claimed that chart was a 'fake backspec' chart.
I have been using 5w-20 in my Toyota since I joined BITOG without noticing any ill effects. See my sig.
Whether the vehicle manufacturer specs it or not, I see no reason that 0w30 cannot be used in place of 5w30. It would meet the same specs down to the minimum temp for the 5W. And be better at any lower temp. Only downside is possibly more cost.
Toyota still recommends 5w30 for your application though; just sayin.
I wonder if back speced engines were really tested, using the thinner oil. I really doubt it, so I will stick with the original recommendation and let others do the testing on their vehicles. Ed
Originally Posted By: simple_gifts
There was a post a few days back where a bitog'r claimed that chart was a 'fake backspec' chart.
IIRC, that chart is from Toyota Canada, as the Scion models on that chart were sold in the US before 2011, the earliest dates listed for them. They were sold in Canada starting in 2011.
There was a post a few days back where a bitog'r claimed that chart was a 'fake backspec' chart.
IIRC, that chart is from Toyota Canada, as the Scion models on that chart were sold in the US before 2011, the earliest dates listed for them. They were sold in Canada starting in 2011.
Why do you want to go lighter then 5w30?
Originally Posted By: BrocLuno
Why do you want to go lighter then 5w30?
Probably just because he knows you won't be able to stop yourself from asking why.
Why do you want to go lighter then 5w30?
Probably just because he knows you won't be able to stop yourself from asking why.
Originally Posted By: CT8
Why would you ask?
read a blog on importance of cold start up flow.
I wonder what temperature "cold" it becomes important, such that a person might choose 0 30 before 5 30??
Or does it never get that cold in coastal south carolina?
Why would you ask?
read a blog on importance of cold start up flow.
I wonder what temperature "cold" it becomes important, such that a person might choose 0 30 before 5 30??
Or does it never get that cold in coastal south carolina?
Originally Posted By: edwardh1
Originally Posted By: CT8
Why would you ask?
read a blog on importance of cold start up flow.
I wonder what temperature "cold" it becomes important, such that a person might choose 0 30 before 5 30??
Or does it never get that cold in coastal south carolina?
Coastal South Carolina, if Wiki is correct doesn't get much below freezing ?
If that's the cse, there is virtually no difference between 0W, 5W, and 10W (or 15W) at your typical starting temperatures.
For an e.g. Mobil 1 5W30 and 0W30 would be virtually identical.
If you are seriously below freezing, the "W" rating becomes very important.
Originally Posted By: CT8
Why would you ask?
read a blog on importance of cold start up flow.
I wonder what temperature "cold" it becomes important, such that a person might choose 0 30 before 5 30??
Or does it never get that cold in coastal south carolina?
Coastal South Carolina, if Wiki is correct doesn't get much below freezing ?
If that's the cse, there is virtually no difference between 0W, 5W, and 10W (or 15W) at your typical starting temperatures.
For an e.g. Mobil 1 5W30 and 0W30 would be virtually identical.
If you are seriously below freezing, the "W" rating becomes very important.
- Status
Similar threads
- Locked
- Locked