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Old Oct 6, 2014 | 10:16 AM
  #1  
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Default Brad penn winter question

20w50 brad penn semi synthetic...so semi solid when cold?

This is the beginning of the first winter using brad penn for me. I just did what I hope to be my final oil change till spring, since it's a pita to get the car hot enough sometimes in the middle of a brutal cold winter (think "last year")...

So we have gotten down to the forties this past few days at night, and I have noticed considerably more clunky clanky coughy type noise upon initial startup. Really rough. And then within seconds it's gone and all back to normal. This has to be the oil. But is that everyone's experience in cold weather? I'm talking about initial startup after the car has sat a day or two and then overnight. Cold start in the am.

Secondly, is that something that swepco 502 would help reduce? Judging by the sound, I am adding wear to the motor on cold starts. And I'd like to reduce that, without changing to a light weight oil for the winter, since I just did the oil change.
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Old Oct 6, 2014 | 11:40 AM
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All the shops I've spoken to re-assure me its perfectly fine to run. If you check the product PDF on the 20w-50 aisle, the pour point at which it loses its flow characteristics is -16F. So unless we have one hell of a winter, we should be fine. I sometimes get the oil burble even on hot day start up, and I ran Brad Penn past two years until it snowed with no issue, it does need a bit more time to fully warm up though.
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Old Oct 6, 2014 | 12:21 PM
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You could always run BP 15-40.

I know that Gamroth does, and he's in the Portland area, not quite as cold as you.

Easy enough and no worries.
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Old Oct 6, 2014 | 12:28 PM
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maybe $30 for an electric oil pan heater? If my car wasn't in a heated garaged, I would never have had 20W50 in it during the winter.
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Old Oct 6, 2014 | 12:58 PM
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Perhaps drain a few quarts and mix some 0W30 in there.

I mix BP in the winter to move closer to a 5W
40. Works fine for me.
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Old Oct 6, 2014 | 04:36 PM
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Use the BP 15w-40 product at this time of year as it flows much better when cold.
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Old Oct 6, 2014 | 04:43 PM
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Goughary, is your car garaged? Throw a 100 watt shop light in the engine bay or under the car to help pre-warm the motor.
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Old Oct 6, 2014 | 07:38 PM
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Not a bad idea. Car is garaged. I'm really trying to rule out two things. First, am
I hearing damage or wear that isn't "so bad" yet? I did a top end build two years ago, but we didn't split the case. So the bottom end only has 93k miles on it. Top end has 20k.
Second...if I'm not hearing damaged, should I worry? It goes away in seconds. It was suggested that swepco 502 could be helpful.
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Old Oct 6, 2014 | 07:49 PM
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Rob,

You don't need Swepco 502; the B-P oil has everything you need in it without any further "doctoring".

Using a stethoscope (or long handled screwdriver), listen to various parts of the engine to see where any odd noises are coming from. Compare sides as well as individual cylinders.
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Old Oct 6, 2014 | 08:09 PM
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Mine has been absolutely fine with brad penn 20-50w for 4.5 years during Maryland winters.
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Old Oct 6, 2014 | 09:58 PM
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Originally Posted by Goughary
So we have gotten down to the forties this past few days at night, and I have noticed considerably more clunky clanky coughy type noise upon initial startup. Really rough. And then within seconds it's gone and all back to normal. This has to be the oil. But is that everyone's experience in cold weather? I'm talking about initial startup after the car has sat a day or two and then overnight. Cold start in the am.
What you are hearing is pretty normal for a 964 with 20w50 (even 15w50 is kinda thick - noise wise at least) in New England when the weather gets cold and the car lives in an unheated space. And as it gets colder you will notice that it feels like its having more difficulty trying to start.
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Old Oct 6, 2014 | 10:58 PM
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Thanks Steve...I'm always cognizant of noise. Probably too much so given this choice for a daily driver...lol...but I'll try to get someone to start it for me sometime so I can be in the engine bay to take a listen...

Jason...that's kinda what I wanted to hear...and sorta what I have been expecting...So if it all goes well, I'll be driving it next summer instead of rebuilding it...
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Old Oct 7, 2014 | 12:54 AM
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At the suggestion of Charles at LN Engineering, I use a mix of BP 20w50 and 0w30 in the winter, and have no issues with cold starts.
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Old Oct 7, 2014 | 08:22 AM
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Originally Posted by DWS964
At the suggestion of Charles at LN Engineering, I use a mix of BP 20w50 and 0w30 in the winter, and have no issues with cold starts.
And easy to do now... drain 3 quarts of 20w50 and add three quarts of 0w30... done in 10 minutes if you have a lift and drain pan.
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Old Oct 7, 2014 | 02:22 PM
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Originally Posted by Goughary
Jason...that's kinda what I wanted to hear...and sorta what I have been expecting...So if it all goes well, I'll be driving it next summer instead of rebuilding it...
It's normal to hear what you are hearing (most shops see the Z-rated tires and assume you won't be driving in the cold) but if you plan to drive it regularly through the winter, it is also normal to play it safe and do what Navaros911 is suggesting... Just jack up the right front and throw a large clean pale under the oil tank. You don't need to worry about getting the engine upto temperature to drain the oil, it can be stone cold.
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