Oil Change - 5w-20 or 5w-30? What everyone is using?
08-03-09, 02:10 PM
#1
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Oil Change - 5w-20 or 5w-30? What everyone is using?
I wanted to start this thread to see what types of oil is everyone using for your IS?
I just switched to 5w-20 Mobile 1 per Lexus & Toyota new suggestions vs using the 5w-30.
Anyone else is also using 5w-20?
I just switched to 5w-20 Mobile 1 per Lexus & Toyota new suggestions vs using the 5w-30.
Anyone else is also using 5w-20?
08-03-09, 05:04 PM
#7
Up to 80% of engine wear is from cold starts. This does not only pertain to cold weather. Cold start means the first start of the day after the engine has completely cooled/drained down. This wear accrues in the time the oil takes to get to the vital parts of the engine (bearings, cams, lifters, etc). The quicker the oil gets to those vital areas the less wear. That being said, the lower the weight the better/faster the oil will flow during start-up. The IS, along with most modern engines are using 5w-20. The “w” represents winter and is the important number to look at when determining cold start flow. The lower the number the better cold flow.
I was using 0w-20 for the first two years and now I am using 0w-30. I will soon see which shows better in our engine (3.5), by analyzing UOAs (Used Oil Analysis). I am VERY hard on the engine (High RPMs quite often).
Koz
I was using 0w-20 for the first two years and now I am using 0w-30. I will soon see which shows better in our engine (3.5), by analyzing UOAs (Used Oil Analysis). I am VERY hard on the engine (High RPMs quite often).
Koz
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08-04-09, 12:47 AM
#14
Up to 80% of engine wear is from cold starts. This does not only pertain to cold weather. Cold start means the first start of the day after the engine has completely cooled/drained down. This wear accrues in the time the oil takes to get to the vital parts of the engine (bearings, cams, lifters, etc). The quicker the oil gets to those vital areas the less wear. That being said, the lower the weight the better/faster the oil will flow during start-up. The IS, along with most modern engines are using 5w-20. The “w” represents winter and is the important number to look at when determining cold start flow. The lower the number the better cold flow.
I was using 0w-20 for the first two years and now I am using 0w-30. I will soon see which shows better in our engine (3.5), by analyzing UOAs (Used Oil Analysis). I am VERY hard on the engine (High RPMs quite often).
Koz
I was using 0w-20 for the first two years and now I am using 0w-30. I will soon see which shows better in our engine (3.5), by analyzing UOAs (Used Oil Analysis). I am VERY hard on the engine (High RPMs quite often).
Koz
http://www.ferrarichat.com/forum/faq...=haas_articles
One of the best 0w-30 is the german castrol syntec
08-04-09, 04:14 AM
#15
http://www.ferrarichat.com/forum/faq...=haas_articles
One of the best 0w-30 is the german castrol syntec
I've had great results with Amsoil 0w-30. I installed a oil bypass system on my V8 4Runner. I've been using this oil now for 4 years (Never changed) with 40K miles on it and my last UOA shows no end in sight yet. Usually 0w oils have the best additive packages and are the highest quality (For street use) oil each manufacture makes. You can’t go wrong with ANY 0w oil.
http://www.amsoil.com/storefront/sso.aspx
Koz