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. Liqui Molly 5-30 has been great down here in FloRida. I just asked the BMW racing guys what they were using in their B58 engine track cars.

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