Castrol Edge 5W-30 grp 111 is HALF the price of Mobil 1 10W-30 here in Australia. Roger
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I won't use a non-synthetic if it was given to me.
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I won't use a non-synthetic if it was given to me.
Why? We've seen more than enough evidence on here that conventional oil can get the job done extremely well. Synthetics definitely are better for long drain intervals, extremely cold weather and extremely high oil temps. But for 99% of the driving public they can get a very long life out of their engines by using a good conventional oil changed every 5-6k.
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For example (Australian dollars):
Mobil 1 10W-30, 0W-40: $80 - 90 per 5L
Mobil 1 5W-50: $70 per 5L
Castrol Edge 5W-30: $50 per 5L
Valvoline Synpower 10W-50: $50 per 5L
Penzoil Platinum 5W-40: $70 per 5L
Shell Ultra 5W-40: $50 per 5L
Penrite SIN: 70$ per 5L across range
Nulon 10W-50: $55 per 5L
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Oh, my. Posts should be deleted before long. The M1 police will be reporting this thread.