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Author Topic:   What type of synthetic oil is best
racindan
Dirt Roller

Total posts: 5
posted March 11, 2001 08:33 PM
I'm building a stock 350 Chevy and after break in I need to know a good racing synthetic oil can any one help me?

sdhnc29
Dirt Full Roller

Total posts: 74
posted March 11, 2001 11:32 PM
The very best synthetic is Royal Purple . The only draw back is the price . I recommend the Max Oil 21 ,made by Royal Purple , to all of my customers . But if it is not in your budget , then I would go with the second best synthetic Mobil 1 . I will usually suggest the 15w-50 if you use Mobil 1 . It's a little more affordable and easier to find . If your using alcohol , definitely use the Royal Purple . It is compatible with alky contamination in the oil , where as you would need an F series Mobil 1 for alky . The F series is about impossible to get a hold of .

Hope this helps!

Racer14K
Dirt Roller

Total posts: 12
posted March 15, 2001 06:08 PM
sdhnc29 is right, Royal Purple is the best you can get. I use it in my engines and it holds up real well with high oil temps. It is worth the extra dollars, and it's cheaper if you buy it in the 5gl jugs, which are great for waste oil.

mtnman
Dirt Roller

Total posts: 8
posted March 18, 2001 02:02 PM
I agree with both of you guys.I run royal purple 21 in my car, on alcohol.I run about 9 nights on it before I change it.That's about when it starts too discolor.I have never had the oil get the milky look.GOOD stuff!

start79
Dirt Full Roller

Total posts: 56
posted March 20, 2001 05:39 PM
Nine nights w/alcohol. I run regular oil and change it every two races.. Is it common practice to run synthetic oil that long (9 nights)? If it is, I could change to synthetic and save a fortune.

Thanks,

sdhnc29
Dirt Full Roller

Total posts: 74
posted March 20, 2001 09:40 PM
Nine night's is definitely pushing it a little . But if you are very careful , and do not get any dirt in the oil from setting valve's etc. etc. , you can run this oil for much longer than regular motor oil . The Royal Purple has the advantage of being compatible with alcohol . You can see alcohol contamination after racing , the oil will look a little brownish . But after the engine sits for a few day's , the alcohol will evaporate and your oil will be purple again . Pretty cool stuff !! I recommend to my customers , that they should change there oil every 4-5 races , if using Royal Purple . But you should change or clean your oil filter after every race .

mtnman
Dirt Roller

Total posts: 8
posted March 21, 2001 07:09 PM
OOOPPS.Yes, I should have mentioned I run a system one filter on my engine.I take it apart every Monday night.Just in case something is going wrong,but I have not had any problems with the engines that I use royal purple in!I guess that it gets one new quart of oil each week.

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