Mobil 1 5w-30 time to change?
#32
Evolved Member
The service manual recommends 10W-30 for normal use, 5W-30 for extreme cold and 10W-30 or 20W-40 for where it gets hot. 20W-40 is not an oil I've seen on the store shelves so I've never used it. I have used 10W-40 in the summer.
#34
Evolved Member
I'm not a spokesperson for Mitsubishi but I'd suggest their recommendation of 20W-40 gives some insight into their thinking. These multiweight oils have liquid plastic added to them. This stuff is known as viscosity indexer. To obtain a wider range of viscosities you add more plastic. So, you are buying less oil and more viscosity indexer. It seems the engineers at Mitsubishi are not too hot on us owners going too far in that direction.
#36
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I cast another vote for Amsoil 5W-30. Though, running it for 25K mi is not wise for any EVO; The stress thru the turbo, and constant push our cars are put thru demands more frequent changes. The regular oil filter will not last you 25K mi either, so I change it every 5000.
As far as Mobil 1, I can only speak for myself, and the fact that after 5000 I noticed how dirty this oil was compared to the Amsoil.
As far as Mobil 1, I can only speak for myself, and the fact that after 5000 I noticed how dirty this oil was compared to the Amsoil.
#38
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I cast another vote for Amsoil 5W-30. Though, running it for 25K mi is not wise for any EVO; The stress thru the turbo, and constant push our cars are put thru demands more frequent changes. The regular oil filter will not last you 25K mi either, so I change it every 5000.
As far as Mobil 1, I can only speak for myself, and the fact that after 5000 I noticed how dirty this oil was compared to the Amsoil.
As far as Mobil 1, I can only speak for myself, and the fact that after 5000 I noticed how dirty this oil was compared to the Amsoil.
25k for your DD like you wife camry or Ford Explorer, if you haul anything that will be considered severe driving and interval drops to 17k, this does not apply for modified cars running hard only applies for people with regular cars and most of us own those types of cars, AMSOIL has millions of AMERICANS runing these oil at those levels with no issues at all.
a good default drain interval can be 4-5k
Last edited by apagan01; Sep 27, 2009 at 04:57 PM.
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