the consistent point, is the longer you are here. The less paranoid you are.Not on this forum....you wouldn't........
the consistent point, is the longer you are here. The less paranoid you are.Not on this forum....you wouldn't........
Are you talking about the technician looking at the bottle for SN PLUS or SP? No technician does that. Also, there is one and only one TGMO—period.Maybe he took the API Statement that SP GF-6B is not backwards compatible literally and that's what they sent him. So since no SN+ he had to go with 0W-20.
I'm about 99% sure API didn't mean it wasn't comparable with 0W-16 SN+ cars but it's going to cause mass confusion among the public until clarified.
I was making the point that the API statement says GF-6B is not backwards compatible. I'm sure it's a poorly worded statement only meant to apply to cars that speced 0W-20 and not 0W-16 (Pre-GF-6B) but that's what it says.Are you talking about the technician looking at the bottle for SN PLUS or SP? No technician does that. Also, there is one and only one TGMO—period.
Read my last post. They used 0W-16 but the sticker was wrong because they didn't update their sticker printer or it was done in a hurry. The service manager was fully aware of which car used 0W-16, including mine, and he told me that they used bottled 0W-16 when the car specced 0W-16. The parts department send the service bay the oil, oil filter, and oil drain plug gasket automatically according to the computer, and his computer showed 0W-16 sold by the parts department in my case.
The bottle doesn't even have SN PLUS. The revision number (formulation code) is 6378. It will be interesting to see if the SP/GF-6B formulation will be different, which can be told from the revision number. The same revision number would mean no formulation change.
For those who are interested, here is the official Toyota dealer oil poster for the service bays.
TGMO is available in 0W-16, 0W-20, 5W-30, 10W-30, and 10W-40. Gen 2 Prius specs 5W-30. Toyota dealers can use a thicker oil to combat oil consumption.When I bought my prius from my father, he handed me a stack of maintenance records, all done @ the dealer.
Many of the OC were labeled "bulk oil, 10W-30"
It is not clear why a Toyota dealer would even stock that
I just called the service manager at this dealer. He assured me that they used 0W-16. He said he just looked at the parts number on the computer and saw that the parts department sent them the 0W-16 oil. I also asked them whether they have 0W-16 in bulk (can we also call it draft?) or bottle, and he said it's only in bottle. He said the sticker is incorrect because they did it in a rush and their system is not updated. He said they can put the correct sticker if I bring my car back.
I will take his word and later find out if I notice a 0.3% drop in my fuel economy or not.*
*Official fuel-economy limits for SAE 0W-20 GF-6A are 3.8% and 1.8% minimum improvement over SAE 20W-30 fully formulated reference oil for new and used oil (125 hours), respectively, and for SAE 0W-16 GF-6B they are 4.1% and 1.9%. GF6-A and GF6-B use ASTM Sequence VIE and Sequence VIF, respectively; therefore, I am not sure how fair it is to directly compare the numbers.
Call back and ask if the -20 they used is a GF6A or GF6B oil. Keep the -20.
Maybe he took the API Statement that SP GF-6B is not backwards compatible literally and that's what they sent him. So since no SN+ he had to go with 0W-20.
I'm about 99% sure API didn't mean it wasn't comparable with 0W-16 SN+ cars but it's going to cause mass confusion among the public until clarified.
I was making the point that the API statement says GF-6B is not backwards compatible. I'm sure it's a poorly worded statement only meant to apply to cars that speced 0W-20 and not 0W-16 (Pre-GF-6B) but that's what it says.
The API website clearly states 0W-16 GF-6B is a substitute for SN/SN+.
API Announces Improved Engine Oil Standards
WASHINGTON, June 5, 2019 – Today, API announced the approval of improved performance standards for engine oils that will provide greater protection and fuel efficiency for today’s gasoline-engine-powered cars and trucks.www.api.org
"Licensed oils that meet the ILSAC GF-6A standard will be allowed to display the API Certification Mark “Starburst” and may be used where oils meeting GF-5 or earlier gasoline engine oil standards had been recommended. Oils that meet ILSAC GF-6B will be allowed to display a new mark, the API Certification Mark “Shield,” and may be used where SAE 0W-16 oils meeting API SN had been recommended. API is introducing this new “Shield” at the request of automakers to prevent confusion and ensure that 0W-16 oils are used only in applications where they are recommended."
We covered that on another post.
I still think releasing a statement that said it wasn't backwards compatible because of "composition" was not the smartest thing. If you meant viscosity just say it.
SP version probably has a lot of Group V AN and/or POE as the missing 20% in the MSDS for the base oil. I know TGMO 0W-20 SN by ExxonMobil used a lot of POE in the past. ExxonMobil uses AN in its non-FS and non-ESP Mobil 1 oils, and it uses POE in its FS and ESP Mobil 1 oils.