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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Thu, Jan-11-2018, 08:56:32 PM   #11
grannyknot
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Default Re: Mitigating Cold Start Wear

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Originally Posted by SliM3 View Post
I plan on picking up an Insta-Lube Engine Pre-Lube Kit. Might be an option for you to consider as well.
What SliM3 says. A pre-oiler is the ultimate in engine protection. It will probably save some wear if your car is a DD but where it really pays for itself is when your engine hasn't been started in a week or more, that's where the real wear happens. I like these guys,https://www.cpperformance.com/produc...e-pre-lube.htm
But it is not to hard to build one for a lot less money.
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Old Fri, Jan-12-2018, 12:24:15 AM   #12
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Default Re: Mitigating Cold Start Wear

I've started running M1 0w-40 in the winter, I think I'm going to stay with it during the colder months. The difference in time it takes for the engine to build oil pressure during a cold start is significantly faster with the M1. A pre-oiler is obviously the best (it wouldn't be hard to build one actually).
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Old Fri, Jan-12-2018, 12:54:27 AM   #13
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Default Re: Mitigating Cold Start Wear

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A pre-oiler is obviously the best (it wouldn't be hard to build one actually).
Famous last words
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Old Fri, Jan-12-2018, 01:26:59 AM   #14
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Default Re: Mitigating Cold Start Wear

I don't think I understand what a pre-oiler is. Can you explain? Is it a way to turn the engine over slowly without making it spark and fire?
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Old Fri, Jan-12-2018, 12:01:22 PM   #15
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Default Re: Mitigating Cold Start Wear

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I don't think I understand what a pre-oiler is. Can you explain? Is it a way to turn the engine over slowly without making it spark and fire?
The engine doesn't turn over at all until all the oil passages are full, that is what prevents the wear.
There are a couple of different configurations, one type is a pressurized canister of of engine oil that is released when you turn the key to ON, it fills all the oil paths and space between the bearings so when you crank the engine every moving parts has a coating of oil on it. As the car runs the canister is re filled and ready for the next start.
The other type is a small external high pressure pump that is triggered when the key is turned to ON, it pressurizes the oil system as well, you let it do it's job for 5-10 sec. then crank the engine, when the engine starts the pump turns off.
There are number of companies making these pre oiler kits, they are a very simple system, so simple you can build your own.
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Old Fri, Jan-12-2018, 12:15:59 PM   #16
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Default Re: Mitigating Cold Start Wear

Since the s54 bearing wear seems to track with high RPM usage and not with cold starts, I'm going to skip the pre oiler. Feels like a solution to a non problem, to me.

Strong proponent of KISS, here.
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Old Fri, Jan-12-2018, 02:28:47 PM   #17
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Default Re: Mitigating Cold Start Wear

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Originally Posted by Obioban View Post
Since the s54 bearing wear seems to track with high RPM usage and not so much with cold starts... I'm going to skip the pre oiler. Feels like a solution to a non problem, to me.

Strong proponent of KISS, here.
^^this
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Old Fri, Jan-12-2018, 03:23:56 PM   #18
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Default Re: Mitigating Cold Start Wear

I agree with the above 2 posts. Pre oilers are used on freshly built motors when there is absolutely no oil in the runners.

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Old Fri, Jan-12-2018, 03:30:48 PM   #19
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Default Re: Mitigating Cold Start Wear

Roger all, guys, thank you.

DGN
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Old Fri, Jan-12-2018, 03:39:42 PM   #20
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Default Re: Mitigating Cold Start Wear

This is related/slightly off topic but:

I drive my car everyday (for work) and during cold start/drive, my SMG always seems to want to rev it up to 5-6K RPM on the first cycle shift (1st gear -> 2nd) then on the next cycle shift (1st->2nd) it goes back to normal cycle shifting at 2-3k RPM.
I assume this is how SMG was programmed from the factory.

Is reeving it to 5-6K RPM during cold start good for the engine (car is moving, not standstill reeving)?
I've been letting computer decide how to shift and not sure if it was good for the car.
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Discussing Mitigating Cold Start Wear in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)