How often to change oil with track car?
#1
How often to change oil with track car?
I've got a 25 Qt system in my RSR with a 3.6L engine.
Our ol' 944 and 924S have 5qts and 8qts respectively. We
also endurance race these -- so a weekend per oil change
makes sense both economically and hours on engine wise (14-24 hours).
How often should I expect to run the RSR on a batch of oil?
Since i have access to the dry sump - is there samples and
a kit or something I can check the status of the oil.
Sure a kit might cost a little -- but we're talking 25QTs
I don't care how many deals I find on oil -- that's still pretty pricey.
I know the engine is worth a ton more (as is my time since
I know what it takes to rebuild one) -- but still.
Thanks,
Mike
Our ol' 944 and 924S have 5qts and 8qts respectively. We
also endurance race these -- so a weekend per oil change
makes sense both economically and hours on engine wise (14-24 hours).
How often should I expect to run the RSR on a batch of oil?
Since i have access to the dry sump - is there samples and
a kit or something I can check the status of the oil.
Sure a kit might cost a little -- but we're talking 25QTs
I don't care how many deals I find on oil -- that's still pretty pricey.
I know the engine is worth a ton more (as is my time since
I know what it takes to rebuild one) -- but still.
Thanks,
Mike
#2
I run 12ish hour intervals on my cup car using redline...and it could safely go a lot more...with 25 quarts I would send in a sample at 12 hours and evaluate from there...every engine is different but i wouldn't see a problem running 12 hours assuming you are using a high quality oil. use Stavely or Blackstone Labs and start a database of oil samples going forward.
#5
I've got a 25 Qt system in my RSR with a 3.6L engine.
~10 qts in my 6.7l small block and while I let some out after every track day to check it, it only gets changed every 8-10 hours
Just examine it after every event and if its still nice and oily and then you should be good
#6
#7
If it's not oily -- there must be something wrong -- it is a Porsche of course :-)
The extra 10 qts are the 007 option to deter tail gaters.
Mike
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#10
You're kidding, right? What is "nice and oily"? You can't examine oil visually or by touch and make any valid determinations.
I did mean that as a joke but unless you are blind its easy examine oil to see if there are metal flakes or unusual discoloration
#11
The ONLY way to examine oil properly is through lab testing.
Scott
#12
#13
#14
The ONLY way to examine oil properly is through lab testing.
Scott, what I am trying to convey is that its a good idea to just to take a look at the oil to make sure there are no metal shards, coolant, or random crap in there.
8-15 hours is not an eternity for engine oil... If you go to all that trouble of having it analyzed you might as well just change it and be done with it.
#15
I often forget my lab testing kit at home so I am forced to check my oil the way non-pro motorcycle/car racers and Baja 1000 teams have done for decades... If it looks remotely like it did when you filled it, and it hasnt been X amount of hours, then it should be fine.
Scott, what I am trying to convey is that its a good idea to just to take a look at the oil to make sure there are no metal shards, coolant, or random crap in there.
8-15 hours is not an eternity for engine oil... If you go to all that trouble of having it analyzed you might as well just change it and be done with it.
Scott, what I am trying to convey is that its a good idea to just to take a look at the oil to make sure there are no metal shards, coolant, or random crap in there.
8-15 hours is not an eternity for engine oil... If you go to all that trouble of having it analyzed you might as well just change it and be done with it.
When you have upwards of 6 gallons of Red Line racing oil in your oil system, you don't want to change it "just because". At least not if you don't have unlimited funds.
Scott