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Royal Purple OR Amsoil. Your thought's, pros & con's......

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Old 01-20-2004, 04:14 PM
  #16  
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I did notice a HUGE difference in my NV4500 switching to Redline MTL ATF. Shifts a lot easier when the truck isn't moving, and seems not to shift differently in colder weather. For what it's worth.

I run premium blue year around, sometimes I wonder if the blend is a little thick for our weather in Omaha. Worst I've started it up was -14F without being on the block heater. Power Steering complains a little at this temp, I idle it for 30 seconds, another minute or so at 1200-1400RPM until the smoke clears, then take off ever-so-clowly to let her watrm up. I have 1.5 miles of stone roads before the highway, I take it easy in 2nd gear and by time I hit the highway, the coolant needle has moved over into the operating range. I try to stay off boost until it's entirely warmed up. Truck's running great at 233,000 miles.
Old 01-21-2004, 01:47 AM
  #17  
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Originally posted by rossn2
I'm changing shortly (as soon as all arrives)
Engine: Amsoil 15-40w Heavy Duty Diesel and Marine Oil . . . .Will change oil filter at 7500 miles and then oil and filter at 15k. This way I'm covered by both A & B Schedules in my owner's manual.
That's exactly what I've already started doing rossn2. . . Amsoil 15W40 with 7500 mile filter changes and 15000 mile oil changes, for the same reason. . . Service Schedules

I changed to Amsoil at 15000 miles to start "on track." I didn't want to wait to 30K. I drove mine pretty hard on dino for the first 15,000 miles so I figured it was ready.

Vaughn
Old 01-29-2004, 07:51 PM
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we used royal purple at work and had an increase in turbo failure as compared to our usual penzoil long-life 15w40 (a non-synthetic formula) , on my truck i use rotella syn
Old 01-30-2004, 06:53 AM
  #20  
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OK, I'll play.

In spite of other opinions, wouldn't run anything but synthetic in below-zero starts or over 100*F ambient while pulling a load uphill, and I encounter both on a regular basis each year. I believe the "edge" is worth the price. But it's a subjective judgement, based on experience.

After years of "experimenting" in different trucks and jeeps, I've settled on Redline driveline oils. Run MTL in the 6 speed tranny, high-temp ATF in the transfer case, 75w-90 in the front differential, and 80w-140 in the rear. All syn, all Redline, some will say overkill, but I have no reason to be unhappy. MTL seems to do best in the NV5600.

Run Mobil 1 Delvac 5w-40 now in the engine, but I'm still experimenting with that. (Redline diesel oil is another group IV PAO, but is just too expensive for change schedules that I feel comfortable with. Also not API approved, which means not much, but get you trouble with DC over warrantee issues.)

A Redline dealer that I've had excellent results with is Al Smith in Baltimore. He runs a lot of specials -- free shipping on over $100, or choose an additional product for free over $100, things like that. www.synlubes.com
Old 01-30-2004, 07:50 AM
  #22  
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I am getting ready to convert to Amsoil products bumper to bumper.

15W-40 AME in the engine, Series 2000 75W-90 in front diff, Series 2000 75W-140 in the rear diff, Series 2000 75W-90 in the 5 speed tranny, and ATF in the transfer case. I am going to use the AEF flush in the engine as well.

On another note - anyone know the recommended change intervals with these products? I tried pulling the Amsoil info up on thier website, but couldn't read it.

I am going to continue to use Fleetgaurd Stratapore oil filters.

Thanks!

Matt
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