Originally Posted By: MAKamal
Here I am attaching the two pages extracted from the car manual regarding the Capacities and Recommended Fuel/Lubricants
Here is a list of my findings
Castrol Magnatec Proffesional 10W-30
Classification: API SN, SM, SL (SJ and all superseded classifications)/CF. ILSAC GF-4, GF-3, GF-2
KV @ 40 C (cSt): 62.8
KV @ 100 C (cSt): 10.4
Viscosity Index: 148
Castrol Magnatec 10W-40
Classification: API SM (SL, SJ, SH and all superseded classifications)/CF. ACEA A3
KV @ 40 C (cSt): 102
KV @ 100 C (cSt): 14.5
Viscosity Index: 149
Castrol EDGE 5W-40
Classification: API SM/CF. ACEA A3/B3, A3/B4, C3
KV @ 40 C (cSt): 82
KV @ 100 C (cSt): 13.9
Viscosity Index: 174
Castrol Magnatec 5W-30
Classification: API SL, ILSAC GF-3, ACEA A1/B1, A5/B5
KV @ 40 C (cSt): 53.1
KV @ 100 C (cSt): 9.46 (Max 12.5)
Viscosity Index: 163
Mobil 1 0W-40
Classification: API SM, SL, SJ, CF. ACEA A3/B3, A3/B4
KV @ 40 C (cSt): 78.3
KV @ 100 C (cSt): 14
Viscosity Index: 186
LIQUI MOLY Synthoil High Tech 5W-40 (Made in Germany)
Classification: API SM/CF. ACEA A3-04/B4-04
KV @ 40 C (cSt): 86
KV @ 100 C (cSt): 14.1
Viscosity Index: 170
LIQUI MOLY Longtime High Tech 5W-30 (Made in Germany)
Classification: API SM/CF. ACEA A3-04/B4-04/C3-04
KV @ 40 C (cSt): 67
KV @ 100 C (cSt): 12
Viscosity Index: 178
Shell Helix Ultra 5W-40 (Approved by Porsche and Ferrari)
Classification: API SM/CF. ACEA A3/B3/B4
KV @ 40 C (cSt): 76.3
KV @ 100 C (cSt): 13.8
Viscosity Index: 187
Fuchs TITAN SUPERSYN 5W-40 (Fully Synthetic)
Classification: API SM/CF. ACEA A3/B4
KV @ 40 C (cSt): 85
KV @ 100 C (cSt): 14
Viscosity Index: 170
Fuchs TITAN GT1 Pro Flex 5W-30 (Synthetic)
Classification: API SM. ACEA A3/B4/C3
KV @ 40 C (cSt):
KV @ 100 C (cSt):
Viscosity Index:
Currently the dealer is using a conventional oil Mobil 20W-50
Classification: API SM, SL, SJ or SH. ILSAC GF-4
KV @ 40 C (cSt): 162
KV @ 100 C (cSt): 18.1
Viscosity Index: 124
And here is what is in the car manual
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I think I would consider the dealer's choice, and also the other oils you listed.
With heat and dust:
'Thicker oil is better',
changing frequently is important since there is sand or dirt,
Synthetic is my first choice, but not required,
Cost and availability are legitimate factors
I might want to allow for cost , but more so the availability of the oil... The best choice might be the one that you can buy when its time to change
I would consider any of the oils below:
Castrol Magnatec 10W-40
Castrol EDGE 5W-40
Mobil 1 0W-40
LIQUI MOLY Synthoil High Tech 5W-40
Shell Helix Ultra 5W-40
Fuchs TITAN SUPERSYN 5W-40
or even the dealer's conventional oil Mobil 20W-50
If sand, dirt, and short trips are a big concern and they probably are... then maybe low cost is better and changing oil every 3000 miles or even less is as important as the viscosity and brand , synthetic or conventional etc.
Oil analysis could help determine if dirt is really getting into the engine and an issue... if there is oil analysis in your region
Best of luck with your new car!