Mobil 1 or Valvoline Synthetic

I just bought a 1995 Ford Mustang GT with a 5.0L engine at 109,000 miles. The recommended oil weight to use is 10w30. Is Mobil 1 or Valvoline Synthetic the best? Synthetic is obviously better than conventional. For me, it's just a question of whether to use Mobil 1 or Valvoline.

Thanks, BTJustice

Reply to
Buford T. Justice
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Buford T. Justice opined in news:c52c8i$2mgf2o$ snipped-for-privacy@ID-208839.news.uni- berlin.de:

If you plan to change it at under 4000 miles, it wont matter.

If you typically run the car for MORE than 20 minutes per start and over highway a lot AND plan extended changes... Mobil 1

Reply to
Backyard Mechanic

Why do you think synthetic is "obviously" better? Because it costs more?

"Buford T. Justice"

Reply to
Richard and Gwen

addressing your question between mobil 1 or valvoline synthetic. bottom line, it really won't make much difference. each will have their own little bit of additives, but the bulk of the oil is made up of ester base. mobile 1 has the longest track record.

either should perform quite well to your satisfaction.

~ curtis

knowledge is power - growing old is mandatory - growing wise is optional

Reply to
c palmer

Because it is cleaner, proficient, flows more smoothly when hot, has a higher heat point, flows in extreme cold, etc. just to name a few.

BTJustice

----- Original Message ----- From: Richard and Gwen Sent: 4/7/2004 10:27 PM

Reply to
Buford T. Justice

formatting link

----- Original Message ----- From: Buford T. Justice Sent: 4/7/2004 9:09 PM

Reply to
Buford T. Justice

Hey, you left off a very important test...the sucker index. Recent studies have shown that those who use Scamsoil consistently rate the highest on this index. They also tend to by things like the "Tornado" and the "vegematic"

Reply to
Reece Talley

I just got off the phone with Valvoline (1-800-TEAM-VAL). Valvoline Synthetic is PAO based and Group III & IV. I guess I will use Valvoline since I have always used hteir products and all can be found at both Wal-Mart & AutoZone.

BTJustice

----- Original Message ----- From: Buford T. Justice Sent: 4/7/2004 9:09 PM

Reply to
Buford T. Justice

They also say it is good for 7500 miles, but I will change mine every

5000 miles.

BTJustice

----- Original Message ----- From: Buford T. Justice Sent: 4/8/2004 10:14 AM

Reply to
Buford T. Justice

I've used M1 for many/many years in both my truck and car. I use a Wix oil filter and change it at 3K intervals and change the oil at the 4th filter change. (recycle the old filters and oil) I expect V is ok too, but when I started using syn, it was the only choice available that I could afford.

Dave S(Texas)

Reply to
putt

No one addressed the "109,000 miles" factor. Seems to recall some posts about flushing or the Synthetic acting to loosen deposits and having a negative result.

Frank

Reply to
F.H.

I have had very good experience with Mobil 1 and every other mobil synthetic lube i have ever used. However i have never used Valvaline. I am sure it is quality, i meen it is a top name brand. However from ecperience may i suggest AMSOil? I rate them equal to Mobil 1.

Reply to
Brian

in responce to 'F.H."

Reply to
Brian

No one addressed the "109,000 miles" factor. Seems to recall some posts about flushing or the Synthetic acting to loosen deposits and having a negative result. Frank

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i will address this part. i've not had any trouble on engines that were low miles (under 30,000) but i did convert a 5.0 at 55,000 miles to synthetic oil. it was my dad's car and he changes oil when the moon turns blue. he bought the car new and it had a few oil changes. i say few, because he changed the break in oil around the 8,000 mile mark.

anyway, on with the story, all went well with the engine until the

115,000 mile mark. came up to a stop light, the oil light started to flicker. 10 miles later the oil light was bright red, but no engine knocking. finally ended up taking the oil pan off of it only to find the sludge that had built up in the first 50,000 miles had dried out and formed hard crystals. looked some something like large coffee grinds and rock hard. stopped up the sump. cleaned it all up and everything was fine for 4,000 more miles, when the same thing happened. drop pan, same thing. concluded that the synthetic oil draws the oil out of the sludge leaving the carbon crystals. so, my recommendation, if you have a sludged up engine, keep mineral based oil in it and enjoy the engine, unless you want engine troubles down the road later.

~ curtis

knowledge is power - growing old is mandatory - growing wise is optional

Reply to
c palmer

X-No-Archive: Yes Hi Palmer, You are the first person that really know what going on with this synthetic buloney. I have seen these deposits due to the break in oil being mineral. The zeolites also make these clusters and usually they attack the # 1 main journal. Usually clogging the passage and galling the first and second cyl. rod bearings. I've seen as many as 30 engines a year back in the 80's.

1 sure cure was to change that oil filter ever 3k . A fresh filter will catch most of the damaging particles before the filter is so full it bypass's full time.

BeeVee

Reply to
BeeVee

How about a non-biased link?

"Buford T. Justice"

Reply to
Robert A. Matern

Supply one.

BTJustice

----- Original Message ----- From: Robert A. Matern Sent: 4/13/2004 6:45 PM

Reply to
Buford T. Justice

I have used Mobil 1 in my 2000 Honda Civic since the first break in oil change. I change it every 7,000 miles. Use a Mobil 1 filter or K&N filter too. I plan on having this car beyond the 200K mark. It is an expensive old change, but I feel confident after 80K miles, it is the oil for me. I drive over 32K a year. Craig

Reply to
kdxleafblower

You're the one making the argument... YOU do it!

Otherwise, wise folks ignore posts like this as thinly veiled advertising...

"Buford T. Justice"

Reply to
Robert A. Matern

I ran an 88 Bronco II to over 207K using Mobil 1... it died because the frame, brake calipers, power steering, and other critical components rusted beyond repair. The engine still ran great!

Reply to
Robert A. Matern

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