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which oil would you use? #811895 09/22/10 04:18 PM 09/22/10 04:18 PM
Joined: Sep 2010 Posts: 4 ontario canada 7 71smiley340 OP member
71smiley340 OP member 7 Joined: Sep 2010 Posts: 4 ontario canada	I am going to the change oil because the oil I use has no zinc in it. I have a 1971 Demon 340 with 6000 miles on the motor.Not sure which to use. This may have been talked about before but I am new to Moparts. Thanks Greg 6211202-k083.jpg (49 downloads) Last edited by 71smiley340; 09/22/10 06:56 PM.

Re: which oil would you use? [Re: 71smiley340] #811896 09/22/10 07:25 PM 09/22/10 07:25 PM
Joined: Jan 2003 Posts: 5,186 Wherever I am. J Junky master
Junky master J Joined: Jan 2003 Posts: 5,186 Wherever I am.	You're gonna get many different answers. I run 15-40 heavy duty diesel oils such as Shell Rotella T, Delo and the NAPA brand. I've had my valve covers and oil pan off a few times over the past 10 years and the engine is clean. The oil stands up very well. Zinc levels range from 1000 to 1200 ppm in todays heavy duty oils. This level of zinc is all that is needed for stock or mild builds. Racing oils are more in the 1300 ppm zinc range. 2010 Black Challenger SE <> 3.5 V6 Custom Shift Knobs www.flameball.com Check It Out

Re: which oil would you use? [Re: Junky] #811897 09/22/10 08:01 PM 09/22/10 08:01 PM
Joined: Sep 2010 Posts: 4 ontario canada 7 71smiley340 OP member
71smiley340 OP member 7 Joined: Sep 2010 Posts: 4 ontario canada	Thanks you I was told to make sure that the oil I used had zinc but wanted the opinion of others so I didnt get ripped off when I go to buy th oil. GREG

Re: which oil would you use? [Re: 71smiley340] #811898 09/22/10 08:24 PM 09/22/10 08:24 PM
Joined: Jan 2007 Posts: 7,664 IN A ahy master
ahy master A Joined: Jan 2007 Posts: 7,664 IN	There are lots of alternatives. Diesel engine oil + STP has worked well for me on a moderatly aggressive mechanical flat tappet. The STP bumps the zinc level up a bit and may have other benefits.

Re: which oil would you use? [Re: 71smiley340] #811899 09/22/10 08:50 PM 09/22/10 08:50 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	Welcome to moparts. Moparts thread 1. Moparts thread 2.

Re: which oil would you use? [Re: 71smiley340] #811900 09/23/10 01:59 AM 09/23/10 01:59 AM
Joined: Jan 2003 Posts: 5,186 Wherever I am. J Junky master
Junky master J Joined: Jan 2003 Posts: 5,186 Wherever I am.	Here's another one to read. 2010 Black Challenger SE <> 3.5 V6 Custom Shift Knobs www.flameball.com Check It Out

Re: which oil would you use? [Re: Junky] #811901 09/23/10 05:46 AM 09/23/10 05:46 AM
Joined: Sep 2009 Posts: 1,805 ky hills thehemikid top fuel
thehemikid top fuel Joined: Sep 2009 Posts: 1,805 ky hills	...I was going to run the Rotella T (none synthetic) like the previous owner of my Diesel 3500 suggested & a lot on Moparts too, until I read this completely through. http://docs.google.com/viewer?a=v&q=...o-95B2QrXOiWmNA

Re: which oil would you use? [Re: 71smiley340] #811902 09/23/10 07:27 AM 09/23/10 07:27 AM
Joined: Mar 2010 Posts: 357 Lake Elmo, MN Evil Monkey enthusiast
Evil Monkey enthusiast Joined: Mar 2010 Posts: 357 Lake Elmo, MN	I switched over to synthetic oil about 5 years ago. After looking around on this site, http://www.bobistheoilguy.com/forums/ubbthreads.php I saw that the Mobil 1 15W-50 had a very good Zinc content, so I switched to that this summer. The other versions of Mobil 1 were OK, but the 15W-50 has about 1350 PPM Zinc - higher than a lot of the diesel oils they tested. I was using the Quaker State Horsepower 10W-30, but that's only in the 900s PPM Zinc - not enough. I don't leak or burn oil, and my engine is well broken in, so the cost of synthetic over conventional isn't an issue for me as long as the synthetic has the properties I'm looking for. The next engine I build will be roller cammed, so it won't matter so much then... 1974 'Cuda 360/TKO 1990 Ram Van 1998 Neon

Re: which oil would you use? [Re: thehemikid] #811903 09/23/10 09:00 AM 09/23/10 09:00 AM
Joined: Sep 2007 Posts: 14,889 up yours Supercuda About to go away
Supercuda About to go away Joined: Sep 2007 Posts: 14,889 up yours	Quote: ...I was going to run the Rotella T (none synthetic) like the previous owner of my Diesel 3500 suggested & a lot on Moparts too, until I read this completely through. http://docs.google.com/viewer?a=v&q=...o-95B2QrXOiWmNA Good info, but probably wasted on a lot of people. I think it's a bit outdated now. They say there are no such thing as a stupid question. They say there is always the exception that proves the rule. Don't be the exception.

Re: which oil would you use? [Re: Supercuda] #811904 09/23/10 09:34 AM 09/23/10 09:34 AM
Joined: Sep 2003 Posts: 1,465 Carson City, NV B babarracuda pro stock
babarracuda pro stock B Joined: Sep 2003 Posts: 1,465 Carson City, NV	Valvoline 20-50 Racing Oil

Re: which oil would you use? [Re: 71smiley340] #811905 09/23/10 12:32 PM 09/23/10 12:32 PM
Joined: Jan 2003 Posts: 5,186 Wherever I am. J Junky master
Junky master J Joined: Jan 2003 Posts: 5,186 Wherever I am.	Here is one more link to get tons of oil info. Bob Is The Oil Guy web site. Read it and decide for yourself. 2010 Black Challenger SE <> 3.5 V6 Custom Shift Knobs www.flameball.com Check It Out

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