SoCal Lounge II
03-31-2010, 01:51 PM
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Actually, I think you have misconceptions still floating around. The front number is the initial weight when starting the car up before it reaches operating temperature weight. It doesn't act like that in just winter conditions, it acts like that all year long. Any oil is thicker in the cold obviously because it's colder out.
There was a long topic on this and someone linked a article that a guy did research on showing that you can not have to low a viscosity for starting weight, in other words 0w. I agree, even if I was in the desert 0w just allows the engine to start up easier, lubricate the parts better and transition to the operating temperature weight when it reaches it.
A 5w-50 is not the same as a 10w-30 when you start your vehicle up to the time it reaches operating temperature.
There was a long topic on this and someone linked a article that a guy did research on showing that you can not have to low a viscosity for starting weight, in other words 0w. I agree, even if I was in the desert 0w just allows the engine to start up easier, lubricate the parts better and transition to the operating temperature weight when it reaches it.
A 5w-50 is not the same as a 10w-30 when you start your vehicle up to the time it reaches operating temperature.
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03-31-2010, 01:52 PM
Whether you're in Cali with the vehicle exposed to the sun, or up North in winter time, your oil is never always toasty. It still is cold or at the least lukewarm when starting it up.
03-31-2010, 01:54 PM
Administrator
iTrader: (7)
even after sitting in my garage for 5 weeks without being driven, when I started the car the oil was at 76°F.
Ambient temp was 58°F
Ambient temp was 58°F
03-31-2010, 01:57 PM
i know this im going to school to become an ase certified technician, and most new cars since of tighter clearances you want to use a 5w so the oil lubricates components well, older cars have more slack and not built with such precise tolerences and thats why many of them use 10w
03-31-2010, 02:02 PM
The operating temperature these oils are based on and get their rating from are around 200F.
That being said, I never see a reason to use anything more than 0w for starting weight but multiple reason to use it. Only time I would use higher is if I didn't care for a typical vehicle or had no other selection. For the 8 I stick with 0w. It's all subjective in the end based on your own research.
To be honest IMO, it's not the weight that does these engines in anyhow, oil is oil. So long its apparent and you're not using the vehicle for just racing it will lubricate it fine. It's the whole carbon issue, lubrication of the seals and so forth. I don't believe the hype when people blame solely the 5w-20 for the problem.
*edit* I freaking hate how I leave out key words and have to edit...
That being said, I never see a reason to use anything more than 0w for starting weight but multiple reason to use it. Only time I would use higher is if I didn't care for a typical vehicle or had no other selection. For the 8 I stick with 0w. It's all subjective in the end based on your own research.
To be honest IMO, it's not the weight that does these engines in anyhow, oil is oil. So long its apparent and you're not using the vehicle for just racing it will lubricate it fine. It's the whole carbon issue, lubrication of the seals and so forth. I don't believe the hype when people blame solely the 5w-20 for the problem.
*edit* I freaking hate how I leave out key words and have to edit...
03-31-2010, 02:07 PM
Actually, I think you have misconceptions still floating around. The front number is the initial weight when starting the car up before it reaches operating temperature weight. It doesn't act like that in just winter conditions, it acts like that all year long. Any oil is thicker in the cold obviously because it's colder out.
There was a long topic on this and someone linked a article that a guy did research on showing that you can not have to low a viscosity for starting weight, in other words 0w. I agree, even if I was in the desert 0w just allows the engine to start up easier, lubricate the parts better and transition to the operating temperature weight when it reaches it.
A 5w-30 is not the same as a 10w-30 when you start your vehicle up to the time it reaches operating temperature.
There was a long topic on this and someone linked a article that a guy did research on showing that you can not have to low a viscosity for starting weight, in other words 0w. I agree, even if I was in the desert 0w just allows the engine to start up easier, lubricate the parts better and transition to the operating temperature weight when it reaches it.
A 5w-30 is not the same as a 10w-30 when you start your vehicle up to the time it reaches operating temperature.
03-31-2010, 02:10 PM
In the end the differences may be marginally small for the effects of the starting weight but I'll take whatever I can to get this engine particularly to last longer. I'm not knowledgeable on the rotary internal tolerances, but if they're quite tight and you're using thick starting weight oil, it can't be good on the internals.
Of course you'll have people who disagree and stuck with 20w-50 since the Rx7 days but that's just my 2 cents.
Of course you'll have people who disagree and stuck with 20w-50 since the Rx7 days but that's just my 2 cents.
03-31-2010, 02:33 PM
03-31-2010, 02:55 PM
Administrator
iTrader: (7)
whose going in time out?