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post #1 of 15 (permalink) Old 07-13-2007, 09:28 AM Thread Starter
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What Brand and Type of oil does everyone put in their Mustangs? I have a stock 289, 80K miles. No knocking. I have been putting 10W-30 in. Should I start to think of putting a better grade oil in?


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post #2 of 15 (permalink) Old 07-13-2007, 09:37 AM
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I use Shell Rottella 15-40 in my car. ( use it in all my tractors too and as such its a business expense ) Make sure you check the container for a little gear symbol that says Use in Gasoline engines and make sure you dont, repeat dont use that oil. This advise came form this board so do a search for your topic and you will get a disertation on the reasons but based on very knowledgeable folks here go with Rottella.



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post #3 of 15 (permalink) Old 07-13-2007, 10:36 AM
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Since somebody is going to chime in and say Royal Purple, hows about they also tell us what weight they're using?

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post #4 of 15 (permalink) Old 07-13-2007, 10:39 AM
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I use HD30 in Florida for my 66 289 4V. Seems fine but I'm no expert. I used 10W40 for years, but was advised to use 30 weight recently.

Don't know why. Maybe an expert can explain.

66 GT Coupe - Loaded w/ all options except HIPO.
I've owned it for 20 years now.
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post #5 of 15 (permalink) Old 07-13-2007, 10:54 AM
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I live on the west coast of Florida where its hot
all the time! I use Havoline 10W30 year round with
Motorcraft oil filters.
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post #6 of 15 (permalink) Old 07-13-2007, 11:03 AM
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After all the cam failures, I'd only use Rotella T 15-40 diesel oil in a flat tappet cam engine, PERIOD. That is, aside from the 'racing' oils that have retained a high ZDDP and additive content as well.

The squirrels in my head have spoken.
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post #7 of 15 (permalink) Old 07-13-2007, 11:50 AM
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Is shell Rotella T 15-40 diesel oil synthetic? Is it available in most auto parts stores?



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post #8 of 15 (permalink) Old 07-13-2007, 12:04 PM
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you can debate ect and buy the most exspensive oils ect but im 63 and my dad worked for texaco until his retirement and as such told me of all the research that major oil companies do on their oils and lubricants and for classic mustangs with original type drivetrains 10w30 high detergent(hd) is all you need especially if its an older engine where that type of oil was always used. ask 10 dif people and you will get 10 dif answers. i have never had any type of engine failure and ive logged well over a million miles on older cars. take that for what its worth! wes
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post #9 of 15 (permalink) Old 07-13-2007, 01:52 PM
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lol, well just this morning after reading a few other posts around here regarding flat tappet cam wear, I've decided to change my oil this weekend to Mobile 1 Extended Performance 15W-50.

Check out this reading ..
www.hotrod.com - Flat Tappet Cam Tech


and

mobileoil.com - Does Mobil 1 Contain the Additive for Flat Tappet Cams?


1stFback

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post #10 of 15 (permalink) Old 07-13-2007, 02:09 PM
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Quote:
Originally Posted by 1stFback
lol, well just this morning after reading a few other posts around here regarding flat tappet cam wear, I've decided to change my oil this weekend to Mobile 1 Extended Performance 15W-50. .......
The regular Mobile 1 15W-50 has the same level of ZDDP as the Extended Performance 15W-50, and costs a little less. Consider it as well if you aren't going to be extending oil change intervals

Z. Ray
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post #11 of 15 (permalink) Old 07-13-2007, 02:17 PM
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I was wondering about that too.

I couldn't find how much ZDDP was in Mobile 1 15W-50. But I did find where Mobile 1 Extended Performance 15W-50 has 1200 ppm phosphorus.

I guess ZDDP is good for older cars with flat tappet cams, but bad for newer car's with catalytic converters.


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post #12 of 15 (permalink) Old 07-13-2007, 03:24 PM
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Quote:
Originally Posted by 1stFback
I was wondering about that too.

I couldn't find how much ZDDP was in Mobile 1 15W-50. But I did find where Mobile 1 Extended Performance 15W-50 has 1200 ppm phosphorus..........
they both have 1200ppm


Z. Ray
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post #13 of 15 (permalink) Old 07-13-2007, 04:33 PM
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Heres a page that might interest you.

http://www.lnengineering.com/oil.html
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post #14 of 15 (permalink) Old 07-13-2007, 06:29 PM
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I have been using nothing but Castrol 10w-40 in my stock 289 since I bought my Mustang in '98.
I average between 800-1500 miles a year and change the oil and filter (NAPA) once a year.

Have considered going to a synthetic but never have.

Jason
The project vehicles:
'68 Mustang coupe, Acapulco Blue, 289, C-4, power steering
'87 Caprice Classic wagon, gold/blonde, 307, power everything (retired everyday driver)
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Trying to find my father's 1973 Mustang Grande he bought brand new. 3F04F126773 last known registration and title was in New Jersey, 1982.
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post #15 of 15 (permalink) Old 07-13-2007, 09:46 PM
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Quote:
Is shell Rotella T 15-40 diesel oil synthetic? Is it available in most auto parts stores?
You can get it at Walmart and it's conventional.
I read the Hotrod article yesterday and am going to get some this weekend.
Dave


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