How often(# passes) do you Change oil in your racecar?

How often(# passes) do you Change oil in your racecar? - 08/28/13 08:39 PM

I have been changing mine and running the valves after 25 passes for years. Recently I have talked with other racers that change 1-2 times a year or one guy that thinks he needed to change it every outing

. I can usually smell the 112 Sunoco on the dipstick after one time at the track but the oil is still clean! I race almost every Friday night all summer and put about 100 passes on a year so that amounts to 4 oil changes
What do you guys do? Am I throwing good oil away after 25 passes?
My bearing look good from one year to the next but I usually change them out every 3 years along with the rings.
Thanks Mike

Posted By: VernMotor

Re: How often(# passes) do you Change oil in your racecar? - 08/28/13 08:51 PM

20-30 pass's for me. sounds like you are doing the right thing.. why change something that works good?

Posted By: sshemi

Re: How often(# passes) do you Change oil in your racecar? - 08/28/13 08:56 PM

Two times a year.

Posted By: Paul_Fancsali

Re: How often(# passes) do you Change oil in your racecar? - 08/28/13 08:58 PM

Change it every 10 passes and use that oil in street car > Depending on conditions but if the air at track is dusty and smoky I would change it more often then waiting for set number of passes. The second I smell fuel in oil out it goes

Posted By: sshemi

Re: How often(# passes) do you Change oil in your racecar? - 08/28/13 09:00 PM

Quote:

Two times a year.

That it is with alot of street driving

Posted By: '72CudaRacer

Re: How often(# passes) do you Change oil in your racecar? - 08/28/13 09:00 PM

I change mine about 75 passes, but I have a 10 qt system (9 qt Milodon SS pan, a Wix filter that holds just under 1 qt, a remote filter set up and external oil line). It is not unusal for me to make 20-some passes in a weekend. With oil, filter and additive, a change cost around $75 for me, plus getting rid of 10 qts used oil.

Brian

Posted By: Dabee

Re: How often(# passes) do you Change oil in your racecar? - 08/28/13 11:09 PM

Every 50 passes. I average 20 passes a weekend.

Posted By: Quicktree

Re: How often(# passes) do you Change oil in your racecar? - 08/28/13 11:17 PM

buy you guys must just love to change oil

I would guess and say at least a 100 passes probably closer to 150. 2 times a year

Posted By: dvw

Re: How often(# passes) do you Change oil in your racecar? - 08/28/13 11:25 PM

I've got 60 on mine right now.
Doug

Posted By: challengermike

Re: How often(# passes) do you Change oil in your racecar? - 08/28/13 11:25 PM

1 time a year for me. For 150 passes that's only 37.5 street miles if you running the quarter mile or 75 miles including the return road.

Posted By: wyoming

Re: How often(# passes) do you Change oil in your racecar? - 08/29/13 12:01 AM

I check mine for fuel comtamination, if it looks good once a year, I agree with above, at allmost any track a pass is 1/2 mile.Ive had good friends that change after every race, no matter if they went 3 passes or 6, just never saw the need if your running race gas, alcohol would be differnt, not sure about E 85?

Posted By: gregsdart

Re: How often(# passes) do you Change oil in your racecar? - 08/29/13 12:29 AM

I run alky, and it stays so fresh and clear I doubt I have ever needed to change it, but do so once a year.

Posted By: Al_Alguire

Re: How often(# passes) do you Change oil in your racecar? - 08/29/13 12:35 AM

The Super Street car I change it every 30ish passes. Always looks great but the way I see it oil is cheap and it might help me see something going on before it gets bad. On the Hot Street car with the 99 hemi we have been known to change it twice in a weekend. Occasionally if we think we need that extra .02 or .03 we will throw in the thin stuff, but thin I mean 0W5. Usually the car runs a little thicker oil in it. But it is a heads up all motor deal so ya gotta do what ya gotta do.

Posted By: Crizila

Re: How often(# passes) do you Change oil in your racecar? - 08/29/13 01:39 AM

once a year, whether it needs it or not. Run full synthetic and a $10 oil filter. Drain oil often goes in my beater.

Posted By: rebel

Re: How often(# passes) do you Change oil in your racecar? - 08/29/13 05:17 AM

after 50 runs. i use Royal Purple & usually by the time it gets to 50 runs it's lost it's purple shine & has become redish. 12 quarts in my system.

Posted By: Challenger 1

Re: How often(# passes) do you Change oil in your racecar? - 08/29/13 02:30 PM

After every run in my TAD and it holds 18 quarts because that's what it takes to keep oil in the pan with 60 pounds of boost.
Some times we would keep the oil around for a second run like the next day after it cooled.
The car always got cool fresh oil to go along with new upper rod bearings for each run.

Like if we had to start the car a extra time in the pit's then the oil definitely got dumped after one run.

I raced TAD for 8 years and only started the car twice at the shop, always waited until we got to the track to start a fresh engine because of the fuel system being drained after each weekend and the cost of oil and everything else like bearings and spark plugs.

Posted By: nssracer1

Re: How often(# passes) do you Change oil in your racecar? - 08/29/13 02:43 PM

20 runs on the DragnWagn. Like to see inside that System One filter to make sure everything is OK.

Posted By: BobR

Re: How often(# passes) do you Change oil in your racecar? - 08/29/13 04:54 PM

Quote:

After every run in my TAD and it holds 18 quarts because that's what it takes to keep oil in the pan with 60 pounds of boost.
Some times we would keep the oil around for a second run like the next day after it cooled.
The car always got cool fresh oil to go along with new upper rod bearings for each run.

Like if we had to start the car a extra time in the pit's then the oil definitely got dumped after one run.

I raced TAD for 8 years and only started the car twice at the shop, always waited until we got to the track to start a fresh engine because of the fuel system being drained after each weekend and the cost of oil and everything else like bearings and spark plugs.

With EFI you can get 3-4 runs using methanol and boost. That's about how often we change ours'.

Posted By: Challenger 1

Re: How often(# passes) do you Change oil in your racecar? - 08/29/13 05:00 PM

Quote:

Quote:

After every run in my TAD and it holds 18 quarts because that's what it takes to keep oil in the pan with 60 pounds of boost.
Some times we would keep the oil around for a second run like the next day after it cooled.
The car always got cool fresh oil to go along with new upper rod bearings for each run.

Like if we had to start the car a extra time in the pit's then the oil definitely got dumped after one run.

I raced TAD for 8 years and only started the car twice at the shop, always waited until we got to the track to start a fresh engine because of the fuel system being drained after each weekend and the cost of oil and everything else like bearings and spark plugs.

With EFI you can get 3-4 runs using methanol and boost. That's about how often we change ours'.