I'm not saying that's the best oil, but it's a fine oil on a budget. I and then he, never had it freshened for those 6 seasons. IDK what happened to it after that, I haven't seen that guy since. This engine ran flawlessly for me, and I sold it to a guy who raced it 2 more seasons for sure. I also only ran 6qts in it, 1 qt low, to help with windage. I started with fresh oil at the start of year and didn't change it all season. I raced a 602 crate very successfully for 4 years. The moment one decides to go racing, they've already committed themselves to an acre of large and frivolous expenses. Unless you're on the EPA racing team, go ahead and get a drum of VR1 or Schaeffer Supreme 7000 in 20/50 and call it a day. Now what do you suppose you ought to be running in an old school super modified elephant engine for racing? The latest and greatest new generation V8 engines call for a 50 weight for racing. You know as well as I do that engine is going to rip an OTS oil to shreds multiple times compared to what you're going to get out of a good racing oil. If you know you're going to be dumping oil often, stop buying it off the shelf in quarts and start ordering the correct oil in gallons. If he's got one of those nice programs where the oil manufacturer is paying you enough sponsor money to run their OTS oils that you can redo the engine every race, then have at it. Racing a 602 under constant load at 210, and 6200 rpm is going to be a lot safer with a true racing oil. So I am looking for insight here, questions, comments, concerns? I have researched this on all the crate message boards and spoken to all of my friends who run this class and everybody has their own opinions and favorites. I am also looking at gear oils, because we will be running different size tracks and changing gears often, ( it is a Winters QC rearend) I am considering something from either Mobil or Valvoline in the 75w90 weight. I want it to be something that is easy to find, not some boutique oil that has to be ordered on online everytime. I am considering something like M1 10w30HM or maybe a HDEO like Rotella 15w40 or Delvac ESP 5w40. I am look for something would offer good protection, but not be too expensive to change out every 10 nights of racing. Years ago when I raced this class we ran JG XP3 but that is too costly for this budget. 6200 max rpms 210' water temp, track sizes ranging from tight 1/4 miles to big long straightaways 5/8 miles. My question is this, what would be a good choice of engine oil to use in this enviroment, i.e. He will be using a GM 602 crate engine in a NE style dirt modified. I am help out a young friend who is just starting in dirt oval track racing.
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