Heres what i use just for reference;
06 Mazda 3 SP23 with 40000ks ; 5w30 Castrol Edge
96 Mazda 323 1.8 with 180000ks ; 15w30 Castrol Synthetic
85 Mazda 323 1.6 with 300000ks ; 20w40 Castrol GTX
As my cars become older and more worn ill use thicker oils.
If i run anything thinner in the older cars i do notice much more oil being burnt off and having to add oil on a more regular basis so i use these oils for my specific cars needs.
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Too many Mazdas. ♡
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