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Author Topic:   Oil change intervals
CNC DOC
Dirt Roller

Total posts: 20
posted February 12, 2001 07:06 PM
What oil are you guys using in an alcohol motor and often do you change it. I contacted Redline and they said every 4 to 5 nights. This seems to long to me. Thanks.

MOD RACER#93
Dirt Freak

Total posts: 251
posted February 12, 2001 07:27 PM
I like to use the Valvoline 20w 50. I used Mobile 1 synthetic a couple of time at the end of last year, but it was just too expensive to be changing all the time...I usually change my oil every other week, or two races, cause sometimes we race two nights a week. Im sure the oil is still good that im changing, it's just that it gets loaded down with the methanol, and methanol will not lubricate a motor....LOL. I have used Valvoline ever since I raced my first car 6 years ago, and have only had 1 engine failure. That was due to my own ignorance of not having a good fan shroud, and my stupidity, for not shutting down when the temp got up to 240. Yea after the race the hydraulic lifters were swapping holes....Needles to say they money I got for finishing a close second wasn't neerly enough to account for the engine loss....Anyway hope this helps ya out...

jklostermann
Dirt Full Roller

Total posts: 45
posted February 12, 2001 07:30 PM
We run VR1 straight 50 weight. Some guys run 50-20, however I wouldn't recommend anything lighter, atleast in a big motor like we run. As far as changing the oil we do it after every time we hit the ignition button. It helps when a Valvoline dealer is a sponsor on the car. FREE OIL! FREE OIL!

MOD RACER#93
Dirt Freak

Total posts: 251
posted February 12, 2001 07:31 PM
Oh yea, it's the 20w 50 racing oil.

And also my engine failure didnt' occure till the next week in hot laps. Cracked cylinder wall.....Steam.....Bang....rod out the side of the pan....LOL.

Pickel
Dirt Freak

Total posts: 239
posted February 12, 2001 08:27 PM UIN: 25419780
I change my oil every 4 to 5 runs...I like Kendel stright 50 ..been runnin it for long time never had a prob with it..

[This message has been edited by Pickel (edited February 12, 2001).]

fury
Dirt Full Roller

Total posts: 52
posted February 12, 2001 10:30 PM
I change the oil after every night of racing and I highly reccomend it.

I use Kendall or Amalie straight 40wt for all but the first month of the season and the last month of the season when tempatures are starting get cold out outside.
During those two months I use 20W50 kendall or amalie. In 6 years I have yet to have a oil related problem.

wfoondirt
Dirt Maniac

Total posts: 142
posted February 13, 2001 09:52 AM
On a dirt car i change the oil every other night or every 100 laps which ever comes first. Dirt cars ingest so many contaminants that really there is no such thing as changing oil too often. I run vr1 50 most of the year but run 20-50 if the weather gets cool. There is a big debate on sythetic vs conventional oil. Personally i do perventative rebuilds often enough that i haven't seen significant enough wear to warrant the use of sythetic. Also there is a slight horsepower gain with the sythetic but i beleive most modifieds are over powered anyway. I think if money wasn't an issue sythetic would be the way to go though.

saintmike
Dirt Full Roller

Total posts: 28
posted February 15, 2001 08:27 PM UIN: 104185055
I too use Valvoline oil as that is what my sponsor provides. 20w50 for the cooler weather and straight 50 otherwise. Change interval is after two complete nights. Never any oil related problems here, 'cept for the exploded "FRAM" HP4 filter and the loose innards of the "DELCO" filter. (On the other hand....... LOL )

Rooster
Dirt Forum Racer

Total posts: 90
posted February 15, 2001 09:03 PM
We use Kendall GT-1 50wt, we change after two full nights of racing. No problems, and we don't get that milky oil in the spring and fall.

CUSTOMPERFORMANCE
Dirt Freak

Total posts: 213
posted February 15, 2001 09:17 PM
when i race just one nite a week i change every 4 nites, unless i have had the engine hot or run extremely hard. when i start out in the beginning of season when colder i use straight 40 then when warmer i use straight 50 or 20/50 valvoline or castrol. when i race 2 nites a week i change every week

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