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Hi Genie. Din see your reply. Just changed my oil from Schaeffers 9000 to M1 5w30. The engine feels rough and there is slight drop in fuel economy. Any idea for this occurence?

Erm what speeds or rpm can 5w30 take? Constant 130-140 on Malaysia highways fine?

Hi,

any one tried using 5w20 engine oils under gentle driving condition and short trips. The manual calls for 5w30 and 10w30 rated oil..

the temp here is around 26-34 degress celsius..

thanks in advance