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    3rz Oil grades

    Good day chaps, What engine oil grade do you use in a 3rz-fe? I am running 5w40 syn. We have harsh climates +/- 40deg C at times. I have noted impressive gains on a friends 3rz with 5w30 syn in terms of fuel consumption. Are there in any negatives to running a 5w30 syn? is it within spec...
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    3rz-fe (2.7) Oil grade info please

    Good day chaps, What engine oil grade do you use in a 3rz-fe? I am running 5w40 syn. We have harsh climates +/- 40deg C at times. I have noted impressive gains on a friends 3rz with 5w30 syn in terms of fuel consumption. Are there in any negatives to running a 5w30 syn? is it within spec...
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