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Author Topic:   Oil weight and brand?
dode
Dirt Freak

Total posts: 417
posted May 12, 2002 11:58 AM UIN: 13209501
Ok...currently, we are running Valvoline Racing SAE 50, and it is getting a little expensive. Here is my question. What are the advantages/disadvantages of running 20-50 versus straight 50? I ask this because there are quite a few more options in that weight. Also, anyone know anything about Mobil oil (not synthetic)? They carry it at the local K-Mart for $1.00 a quart. I realize using a good oil is good, and that's why I am asking. We run a factory stock that doesn't get revved too high, and we change the oil every other race, unless it gets really hot. Thanks!!!

John

LUBEGUY07
Dirt Maniac

Total posts: 156
posted May 12, 2002 03:55 PM
we use northland 20w50 racing oil works good and they sponsor us so its cheap, we used to use 15w 40 before too and worked ok


smayo964
Dirt Forum Racer

Total posts: 90
posted May 13, 2002 07:27 AM
Yes, the Mobil regular oil is a good one to run, especially for the price. I run it in all my vehicles. Used to work in a Mobil garage. I ran the 20W-50 in my street stock and changed it every other weekend. The oil came out slightly darker than when I put it in and felt like it still had the consistency of when it came out of the bottle. I'd say run it. Just my 2 pennies.

marty
Dirt Maniac

Total posts: 111
posted May 13, 2002 01:29 PM
Just talking basics. A 20-50 grade oil means that the oil has the viscosity of a straight 20 grade oil when cold but has the viscosity of a straight 50 grade when hot.

dode
Dirt Freak

Total posts: 417
posted May 13, 2002 01:32 PM UIN: 13209501
Right...I understand that...which a lot of which helps vehicles start better when cold...I don't think this would really be an issue in a race car right? Oh...ever see 0W-50? All I gotta say is the bottle shakes like orange juice...ha ha ha.

John

marty
Dirt Maniac

Total posts: 111
posted May 13, 2002 05:29 PM
On the topic of synthetic oil i once read a article by a very respected guy who worked for an oil companies development department. He said that many Synthetic oils can increase engine wear because what it contains coats the moving parts & disperses the oil! Remember the adverters showing you an engine that could carry on running for a couple of minutes after the oil had been drained? well he says that coating actualy increases wear!

#28
Dirt Maniac

Total posts: 154
posted May 13, 2002 07:43 PM
I knew someone that worked at an oil plant and he said that they put the same oil in different bottles. Not meaning the weight ratings, but possibly that Quaker State and Pennzoil etc. could be the same oil. It made me wonder.

hughes
Dirt Maniac

Total posts: 141
posted May 13, 2002 08:52 PM
Tech 2000 is made by Penzoil which is a sister/ parent company of quaker state or vice versa. Tech 2000 is .86 cents a qt. How many people have been to the walmart oil refinery, it's because they buy it from Penzoil.

#28
Dirt Maniac

Total posts: 154
posted May 13, 2002 10:52 PM
Darn, I was looking forward to that trip to the refinery and maybe seeing Ol' Roy too.

racer17j
Dirt Forum Champ
Total posts: 1565
posted May 14, 2002 08:25 AM UIN: 54865418
dode i have seen a few artical in the past couple years that say to use 30wt in lower horse power engines .myself i have used valoline 20/50 before worked fine like hughes said i have ran the wally word oil too in my cruiser car . this year i'll be running pens 10/40 for a while cause it was on sale at k-mart 70 cents a qt so i bought a couple cases

kong
Dirt Full Roller

Total posts: 35
posted May 14, 2002 01:32 PM
This is a racing forum, right? You guys are supposed to be bragging about how much you spend, not how you saved a few bucks and got the same results. If you guys would read some of the other forums you would know this. P.S. I have a friend that has run a street stock type of car for years. He runs whatever is cheapest or on sale but he changes it every other race. He claims to never have had an oil related engine failure.

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