Racing Oil (Engine)- How long without changing?
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Racing Oil (Engine)- How long without changing?
I am in the process of wrapping up my race engine build right now... I plan on running a fully-synthetic 20w50 weight race oil with high zinc/phosphorous concentration in the engine. I understand that there are not a lot of detergents in these race oils, so they are expected to be changed more regularly.
...Here is my question:
How frequently should the oil be changed if the oil is being used in a street car? 1,000mi? 1,500mi? 3,000mi? Or should it not be used at all, because it is not adequate enough protection for a street car?
Thanks!
...Here is my question:
How frequently should the oil be changed if the oil is being used in a street car? 1,000mi? 1,500mi? 3,000mi? Or should it not be used at all, because it is not adequate enough protection for a street car?
Thanks!
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It depends on the brand of the oil, the type of the oil from that manufacturer and what conditions the oil sees such as DD, racing, DD + a few passes at the drag strip.
For example. AMSOIL has ARO 20W-50 and Z-Rod 20W-50. I personally run the ARO 20W-50, because it has high zinc and phosphorous, it has detergents, and it's on FP's approved oil list.
AMSOIL will tell you 5,000 is fine. However, since I just put a bunch of money into my car, I will do it probably every 1,000 miles. Or if it sees a lot of racing, I'll change it more frequently. It's cheap(er) insurance.
-Bink
For example. AMSOIL has ARO 20W-50 and Z-Rod 20W-50. I personally run the ARO 20W-50, because it has high zinc and phosphorous, it has detergents, and it's on FP's approved oil list.
AMSOIL will tell you 5,000 is fine. However, since I just put a bunch of money into my car, I will do it probably every 1,000 miles. Or if it sees a lot of racing, I'll change it more frequently. It's cheap(er) insurance.
-Bink
Last edited by binky; Oct 14, 2011 at 11:14 AM.
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After I run my motor with regular oil for 20mins or so, I'm going to drain it an run the 20w50 Valvoline Synthetic Not Street Legal. Is that going to be a problem? If so, I'll just send it back now, before I open the case.
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After the initial break-in I used AMSOIL, Valvoline is probably fine, but AMSOIL has a very good anti-wear package.
If it were my Evo, that's what I would personally do.
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Last edited by binky; Oct 14, 2011 at 11:51 AM.
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I was told I should break my motor in with whatever oil weight I plan on running in the car...
That is very conflicting because there is a huge difference between 0w30/20w50. :x
That is very conflicting because there is a huge difference between 0w30/20w50. :x
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In the end, it's your car. I'm just telling you how I did it, which was based on a lot of research, and talking with the guys at English Racing.
It worked, the engines healthy and I'm making a lot of power.
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I use VR-1 synthetic after changing to an FP turbo.
I sent a sample to Blackstone Labs@4500 mile change and they said based on that oil's contents I could easily go to 5500 on the next change.
That was with a few(30ish) track passes, a few hours of road course time, DD and quite a bit of spirited street driving.
I sent a sample to Blackstone Labs@4500 mile change and they said based on that oil's contents I could easily go to 5500 on the next change.
That was with a few(30ish) track passes, a few hours of road course time, DD and quite a bit of spirited street driving.
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