Originally Posted By: UltrafanUK
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Originally Posted By: dexos
Diesel oils have a better additive pack, but there's no problem to use them in petrol engines.
Actually even oils with commercial designation 'Diesel' or 'Turbo Diesel' are suitable for boths applications (petrol/diesel).
They don't have a better add pack and it's a daft idea to use them in a petrol engine as they might have incompatible seal conditioners.
Most diesel only (Acea B4) oils have slightly higher levels of Calcium detergents (Ca is better than Mg or Na based detergents in a diesel) and some have high levels of Zinc that might be an issue for a petrol engine CAT.
Some B4 oils like Shell Ultra 5w40 do have a slightly different viscosity to their equivalent petrol equivalents, although that often relates to approvals or recommendations the oil has.
I give you an example: CASTROL Edge Titanium FST TD 5W-40
Specs:
ACEA A3 (petrol) B4(diesel) C3(diesel DPF)
API SN/CF
VW 502 00 (petrol)/ 505 00/ 505 01 (diesel)
BMW Longlife-04 (EU petrol and diesel DPF)
MB-Approval 229.31/ 229.51/ 226.5 (petrol/diesel DPF)
Meets Ford WSS-M2C917-A (diesel)
Renault RN0700/0710 (petrol/diesel)
Meets Fiat 9.55535-S2 (petrol)
dexos2* (petrol/diesel DPF)
'Non-Turbo Diesel' and 'Turbo Diesel' are only commercial designations - same product inside.
No CAT compatibility issues (mid saps).
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Originally Posted By: dexos
Diesel oils have a better additive pack, but there's no problem to use them in petrol engines.
Actually even oils with commercial designation 'Diesel' or 'Turbo Diesel' are suitable for boths applications (petrol/diesel).
They don't have a better add pack and it's a daft idea to use them in a petrol engine as they might have incompatible seal conditioners.
Most diesel only (Acea B4) oils have slightly higher levels of Calcium detergents (Ca is better than Mg or Na based detergents in a diesel) and some have high levels of Zinc that might be an issue for a petrol engine CAT.
Some B4 oils like Shell Ultra 5w40 do have a slightly different viscosity to their equivalent petrol equivalents, although that often relates to approvals or recommendations the oil has.
I give you an example: CASTROL Edge Titanium FST TD 5W-40
Specs:
ACEA A3 (petrol) B4(diesel) C3(diesel DPF)
API SN/CF
VW 502 00 (petrol)/ 505 00/ 505 01 (diesel)
BMW Longlife-04 (EU petrol and diesel DPF)
MB-Approval 229.31/ 229.51/ 226.5 (petrol/diesel DPF)
Meets Ford WSS-M2C917-A (diesel)
Renault RN0700/0710 (petrol/diesel)
Meets Fiat 9.55535-S2 (petrol)
dexos2* (petrol/diesel DPF)
'Non-Turbo Diesel' and 'Turbo Diesel' are only commercial designations - same product inside.
No CAT compatibility issues (mid saps).
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