Recent Content by DiverDave

ghillie: Don't want to get personal, but I will bet you are a "Amsoil Dealer". Well here goes: Using your argument that Amsoil test and Mobil does not. Look at the chart below "supplied by Amsoil". Since I am using this oil a Cummins engine and not a race car (20W50 is more for that use as I...

FL60CUMMINS: The reason for my decision to go with the Delvac 1 oil was because of the 5W40 designation rather than the 5W30 of the Amsoil product. I wanted the Higher Viscosity rating. I wanted it Thin in the cold, but Thick in the heat... If you know what I mean. By the way if you buy right...

"Wild Thing" Grow up in the 60's, and it took til now to own a "Wild Thing"... . and the beat goes on. ------------------ Diver Dave Driving a: 2000, 2500 Quad Cab, 4 x 4, SLT, 5 Spd, 3. 54, Camper Package, Trailer Package, Snowplow Prep,Urethane spray in bed liner, CoverMaster fiberglass...

Look in the Archives. I just went thru this and did some HEAVY DUTY investigation. I have switched to the Mobil Delvac 1 oil (5 W 40). Starts better and the added bonus of about half (. 5) miles per gallon better fuel economy. I am going to run it 4500 miles then add a quart with a new Mobil 1...

Look in the Archives. I just went thru this and did some HEAVY DUTY investigation. I have switched to the Mobil Delvac 1 oil (5 W 40). Starts better and the added bonus of about half (. 5) miles per gallon better fuel economy. I am going to run it 4500 miles then add a quart with a new Mobil 1...

Well, just got off the phone with Cummins. They said that the information regarding the "Premature Failure of the Cam and tapits... " was only in discussing 0W30 synthetic oil. They further said that the Mobil Delvac 1 5W40 would give me much better cold weather starting, but did not know it...

EINO: This is the sheet right off the Mobil 1 Page. Hope this tells you all you need to know. It seems like it is the perfect oil, but I am not an oil guru... . Mobil Delvac 1® High-Performance Synthetic, Heavy-Duty Diesel Engine Oil Description Mobil Delvac 1 high-performance diesel...

Talked with Cummins again after posting. Cummins rep. read the memo to me regarding synthetic oil. The memo only talked about Mobil 1 0W30 oil. When I asked him specificly about 5W40 Delvac 1, and explained to him I was taking names and notes, he refurd me to their Lube Specialist, who is to get...

I was getting ready to change to a full synthetic oil on my next oil change (at 9000 Miles). Heard Delvac 1 was the best. I went to the Mobil web site and got the specifications on the oil, and was impressed. I called Cummins (1-800-diesels) to see if I could get on a extended interval oil...