V8 Engine Oil - Synthetic vs Semi Synthetic - Page 4 - Defender Source
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View Poll Results: What type of engine oil do you use?
Synthetic 37 50.00%
Semi-synthetic 8 10.81%
Mineral 24 32.43%
Whatever I can find... 5 6.76%
Voters: 74. You may not vote on this poll

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  #61  
Old January 19th, 2013, 05:18 PM
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Phillip
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Valvoline VR-1 or Amsoil 10w40, my engine builder says 1200 ppm Zinc for flat tappet cams.
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  #62  
Old January 20th, 2013, 01:55 AM
CDeWan
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blah blah. PO of my truck ran high end synthetic and got 266K on the ticker. I continued this until my dumbass overheated the motor. So all that the money spent on the hight end oil..flush..right down the drain as I had to rebuild it anyway. Why waste the money on synthetics is now my philosophy so I run a good convention oil and just change it. You can pick it up anywhere and the V8s are not overly hard to rebuild. just my 2 cents.
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  #63  
Old January 20th, 2013, 05:02 AM
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Frequent oil changes were my preferred route, I used to add flushing additive before changing the oil too. Mineral oil changed every 4000 miles.

Now days I use semi synthetic in my 200tdi, add flushing additive every time I drop the oil and use flushing oil every other oil change. The oil stays clean for about 1000 miles after the change. I change the oil every 5000 miles. Current milage 232000 miles.
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  #64  
Old January 20th, 2013, 05:18 AM
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Sterling Archer
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Quote:
Originally Posted by CDeWan View Post
blah blah. PO of my truck ran high end synthetic and got 266K on the ticker. I continued this until my dumbass overheated the motor. So all that the money spent on the hight end oil..flush..right down the drain as I had to rebuild it anyway. Why waste the money on synthetics is now my philosophy so I run a good convention oil and just change it. You can pick it up anywhere and the V8s are not overly hard to rebuild. just my 2 cents.
I'm with you. Dino oil has worked fine since the dawn of the internal combustion engine. The vast majority of people using synthetics wont own their car long enough to see the barely perceptible results at the end of the car's life, and those motors at 150k+ miles will need a rebuild anyway if it's a restoration candidate. Save your money for fuzzy dice or twizzlers.
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  #65  
Old January 21st, 2013, 12:58 PM
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Diesel oil ZDDP levels are also dropping. Older internet post regarding diesel oil being better suited for flat tappet engines are referring to the older CI-4 and CI-4 plus rated oils, not the newer CJ-4 rated diesel oils. While diesel, oil generally speaking, does have more ZDDP, many engine builders believe it is not enough for flat tappet engines.

The Rover and the ’68 Olds both get Valvoline VR-1 10W-30, 1400ppm zinc and 1300ppm phosphorus (also available in 20W-50). Any Napa will be able to get if for you, usually next day. I also run Napa gold filters so it makes for one stop shopping.

Here’s a link to ZDDP levels of Mobile One oils. I’m not sure if the information is current so “caveat emptor”.

http://www.mobiloil.com/USA-English/...c_Lifters.aspx
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  #66  
Old September 18th, 2016, 06:41 AM
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T B
white 1997 Defender 90 NAS
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Amsoil 10W40 with zinc plus Fram synthetic oil filter from Walmart. Every 5000 kilometers. Probably over the top but it's the way I roll. 142000 thousand kilometers thus far and no oil burning.
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  #67  
Old September 18th, 2016, 08:23 AM
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202k on a Chevy suburban $19.99 oil/filter changes at a small local shop nearest me every 5K. They rotate tires, top fluids and grease joints and shafts. Oil pressure still measure in the low 40's.

The Rovers, NAS90/ROW110, get Rotella 15-40. Watch Home Depot they sell 5qts for 10.99 most the time.
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  #68  
Old September 18th, 2016, 08:27 AM
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Russell
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Originally Posted by 1of40 View Post
202k on a Chevy suburban $19.99 oil/filter changes at a small local shop nearest me every 5K. They rotate tires, top fluids and grease joints and shafts. Oil pressure still measure in the low 40's.
What does the local LR dealer charge for the same, $600?
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  #69  
Old September 18th, 2016, 08:38 AM
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Originally Posted by down_shift View Post
What does the local LR dealer charge for the same, $600?
They'd be pissed if they had to do my Rover's 5k service. To wet and dirty under there. The new rigs probably don't leak.
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