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Rotella T 15W40 #1474843 07/27/13 03:48 PM 07/27/13 03:48 PM
Joined: Jun 2009 Posts: 95 United States T tee-john OP member
tee-john OP member T Joined: Jun 2009 Posts: 95 United States	I was told to run Rotella T 15W40 as the engine oil that I should use because it is high in zinc, any input on that?

Re: Rotella T 15W40 [Re: tee-john] #1474844 07/27/13 03:57 PM 07/27/13 03:57 PM
Joined: Jan 2003 Posts: 12,043 State of Confusion hp383 Just a normal tag again
hp383 Just a normal tag again Joined: Jan 2003 Posts: 12,043 State of Confusion	Thats what just got used in my 92 Dakota 5.2 this morning. I switched to the diesel oil when I bought it to help it last longer, and since I drive interstate 60+ miles a day. I have used it in many different gas engines with no harmful results. Join the Penguin Liberation Front!! Stop the Hippo Occupation!

Re: Rotella T 15W40 [Re: tee-john] #1474845 07/27/13 04:12 PM 07/27/13 04:12 PM
Joined: Jan 2003 Posts: 5,894 Florida Locomotion master
Locomotion master Joined: Jan 2003 Posts: 5,894 Florida	I don't have the specific numbers, but most oils have been getting reductions in zinc over the years, including diesel oils. One needs to do some research to keep up with the latest. Can't take it for granted. Best oils will be advertised as having extra zinc. The zinc is mainly to protect flat tappets. But zinc has an adverse affect on the newer catalytic converters which is why they started removing it. Last edited by Locomotion; 07/27/13 04:49 PM.

Re: Rotella T 15W40 [Re: Locomotion] #1474846 07/27/13 04:18 PM 07/27/13 04:18 PM
Joined: Jan 2003 Posts: 6,497 N.E. Ohio K KillerBee master
KillerBee master K Joined: Jan 2003 Posts: 6,497 N.E. Ohio	Quote: I don't have the specific numbers, but most oils have been getting reductions in zinc over the years, including diesel oils. One needs to do some research to keep up with the latest. Can't take it for granted. Best oils will be advertised as having extra zinc. The zinc is mainly tom protect flat tappets. But zinc has an adverse affect on the newer catalytic converters which is why the started removing it. While Rotella is a great oil that I use in everything from my diesel Ram to my ATV's and motorcycles the amount of zinc has been reduced over the years. I would research what zinc levels are currently in the 15w40 oil and see if your satisfied, you might find you still need a zinc additive.

Re: Rotella T 15W40 [Re: KillerBee] #1474847 07/27/13 04:29 PM 07/27/13 04:29 PM
Joined: Jan 2003 Posts: 20,818 A collage of whims topside Too Many Posts
topside Too Many Posts Joined: Jan 2003 Posts: 20,818 A collage of whims	I use Rotella in a lot of my vehicles, but those with FT cams get zinc additive too; as noted, Rotella has less zinc now. Only the specialty oils have the old levels.

Re: Rotella T 15W40 [Re: topside] #1474848 07/28/13 01:01 AM 07/28/13 01:01 AM
Joined: Sep 2004 Posts: 6,906 IL, Aurora A ademon master
ademon master A Joined: Sep 2004 Posts: 6,906 IL, Aurora	i would use valvoline VR1 10/30 if its a new tight engine or 20/50 if its got some miles on it.

Re: Rotella T 15W40 [Re: ademon] #1474849 07/28/13 01:13 AM 07/28/13 01:13 AM
Joined: Feb 2004 Posts: 4,501 Gainesville,FL G goldmember master
goldmember master G Joined: Feb 2004 Posts: 4,501 Gainesville,FL	Quote: i would use valvoline VR1 10/30 if its a new tight engine or 20/50 if its got some miles on it. These are good oils for flat tappets without going to an expensive oil. Don't spend too many brain cells on Zinc,ZDDP or other myths or additives.

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