OK sooooo..... now dont hate me here but u guys know diesel better then the ricer kids that dominate the Datsun/Nissan boards so Im going to ask you.

I have an LD28 diesel Datsun that calls for 30 weight oil in the Temrature ranges it will spend it's next few years (north FL.)

It is a 1982. Since oil technology has changed... and the engine has just under 117,000 miles.. what do ya'll reccomend? I get the feeling that diesel rated 30wt would be rather hard to find right??

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"If anyone knows other lessons I need to learn, please tell me. I'm tired of learning them the hard way".
by JerryBro

The Glow Plug Wait: This waiting period is a moment of silence to pay honor to Rudolph Diesel. The longer you own your diesel the more honor you will give him". by SD Blue

My normal daily life; either SNAFUed- Situation Normal... All Fouled Up, or FUBARed- Fouled Up Beyond All Repair

62 UNIMOG Camper w/617 Turbo, 85 300SD daily driver- both powered by blended UCO fuels

Any synthetic 15W50 diesel rated oil will be fine, unless it has been run with non-detergent oil..... Brand isn't important so long as it is synthetic (and not one of those semisynthetic blends -- treat those like dino oil).

You can also use any good rated (CH-4 or later) dino oil with reduced change interval (3000 miles or so).

If you do change to synthetic and it has been run on dino oil, change the filter after 1000 miles, it will be full already, then again at 3000 just to make sure it ain't full again!

Peter

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1972 220D ?? miles
1988 300E 200,012
1987 300D Turbo killed 9/25/07, 275,000 miles
1985 Volvo 740 GLE Turobodiesel 218,000
1972 280 SE 4.5 165, 000 - It runs!

Any of the dino 15w-40s would work wonderfully, IMO.
Most of the synthetic diesel oils are 5w-40s, and Id stay away from that... Amsoil has a 15w40 diesel oil, but thats a tough call on whetehr or not to use a synth in it. If you really know about the care of the engine, you could try it, if not, Id just say to stick with the dino diesel oils.
The real benefit of synthetics is theire faster flow when cold. In your climate, I dont think its particularly necessary, as the oil will remain pretty warm.

JMH

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Current Diesels:
1981 240D (73K)
1982 300CD (169k)
1985 190D (169k)
1991 350SD (113k)
1991 350SD (206k)
1991 300D (228k)
1993 300SD (291k)
1993 300D 2.5T (338k)
1996 Dodge Ram CTD (442k)
1996 Dodge Ram CTD (265k)

Past Diesels:
1983 300D (228K)
1985 300D (233K)