What oil grade can we use?

[DesertSupra2.0]

Question 1: what does the “C5” designation on the Toyota branded oil mean (e.g., special ingredients, special properties, magical powers, etc)?

Toyota Genuine Motor Oil SN
OW-20 C5 for GR Toyota Supra

Question 2: does the BMW branded oil have whatever the “C5” designates on the Toyota branded oil?

BMW Longlife-17 FE+ OW-20

I always learn something new on these oil threads. Thanks everyone!

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[PikkaGTR]

The FE is Fuel Economy
BMW has progressively moved onto thinner weight oils for reduced fuel consumption
When you see "FE" in a BMW spec, meaning Fuel Economy, that indicates the HTHS is in the dexos1-GF5-SN range for xw20 or xw30 oils, "2.6 to 3.1 usually. LL-01 & LL-04 have HTHS greater than 3.4

 

[DesertSupra2.0]

The FE is Fuel Economy
BMW has progressively moved onto thinner weight oils for reduced fuel consumption
When you see "FE" in a BMW spec, meaning Fuel Economy, that indicates the HTHS is in the dexos1-GF5-SN range for xw20 or xw30 oils, "2.6 to 3.1 usually. LL-01 & LL-04 have HTHS greater than 3.4

Thanks for explaining the FE designation. Does the “C5” stand for fuel economy too or something else? Just curious. Thanks!

 

[FuzzyRev]

Thanks for explaining the FE designation. Does the “C5” stand for fuel economy too or something else? Just curious. Thanks!

The ACEA C-5 designation is all about lower emissions and less damage to the catalytic converter in the long run. It has lower amounts of phosphorus and sulfur. If you're running a catless downpipe, you no longer need to worry about sticking with C-5 certified oils.

https://www.valvoline.com/en-eur/understanding-oil-standards-acea-specifications/

 

[Avarela99]

I use extra virgin olive oil from Walmart… great value brand. No issues with only 1 oil change in 50k miles??

 

[baagel]

I use extra virgin olive oil from Walmart… great value brand. No issues with only 1 oil change in 50k miles??

Blackstone report or it didn't happen

 

[ShakaDaKine]

The FE is Fuel Economy
BMW has progressively moved onto thinner weight oils for reduced fuel consumption
When you see "FE" in a BMW spec, meaning Fuel Economy, that indicates the HTHS is in the dexos1-GF5-SN range for xw20 or xw30 oils, "2.6 to 3.1 usually. LL-01 & LL-04 have HTHS greater than 3.4

Regarding the LL-01 spec with higher HTHS values, does anyone know what the HTHS value is for the GR factory oil? I came across this: https://msdspds.castrol.com/bpglis/...00502BD80258751006E6013/$File/wepp-c6wrb7.pdf However, it does not specify the HTHS. Will EDGE 0W-20 LL-17 FE+ suffice, or do we need a SP/C5 LL-17 FE+ oil with a higher HTHS than 3.1?

 

[FLtrackdays]

Tracking the crap out of mine. Motul XCess (LL-01) 5-40 has been great down here in FloRida.

 

[Erty]

I use extra virgin olive oil from Walmart

I go avocado oil, less calories

 

[Teleguy11]

Is this another oil thread?

 

[FuzzyRev]

Is this another oil thread?

No, just Edward resurrecting things that should've stayed dead

 

[Emspilot]

For the love of god, please STOP

 

[RGlbk1]

First of all, I'm just providing mainly qualitative value so you can interpret the information how you like.

If you can track down the oil clearance of your main and rod bearing, it will likely be somewhere in the neighborhood of 0.0015 - 0.0025", the literature will suggest oil of #w20 to #w40 for typical operating temp. See article here or here. If you look at enough service manual the bearing clearance has a range, so jumping from 0w20 to 0w30 is reasonable. To jump from 0w20 to 0w40 might be a big leap.

Again, for me to move away from the manufacturer's recommendation is more of a bet than anything. YMMV

. Some OEM and after market bearing manufacturers go with 0.001” of clearance per inch journal diameter and say you can add 0.0005” to that.

 

[RGlbk1]

I'd personally use a 5w-30 or 0w-30 for daily.

Thanks-Got a brand name to go with that?

 

[ToyoBMW]

Thanks-Got a brand name to go with that?

Mobil 1, 0w-30 European

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