Mobil 1 vs Amsoil

[4bangen]

I run motocraft in mine because it's the cheapest semi synthetic I've found. 217k on my last mark vii, and 207k miles on the one I have now. Both cars easily passed state inspection every time and never smoked, leaked or broke. With the exception of a water pump on the 89 I have now. I ran mobil 1 in my tbird because of the turbo heat and driving it 100 miles a day, but like stated above, with n/a cars I go cheap.

[mikeb]

Motor oils have improved tremendously over the stuff you used to buy in a round can back in the day. And with the changeover from carbs to FI, and tighter tolerances in engines, and higher running temps - most any oil will give satisfactory service life nowadays.

I've run ordinary pennzoil 200,000+ miles with no issue. Done the same with mobil 1. I've used walmart conventional oil & synthetic oils with good results. I've run the gamut of filters from frams (ugh), motorcraft, mobil 1, k&n, a/c, purolator, and even supertechs and have never had 1 single issue.

I'd say the conventional oils are good for 5k miles and synthetics a bit longer. I think that comparing oils for ordinary passenger car use is almost splitting hairs. Use what you are happy with, and change it as often as you think you should, and you'll be fine.

[white trash wagon]

Agreed with the above, I have a Ranger with 150k miles, all of them with Walmart 5W20 oil every 4K miles. Doesn't leak or burn a drop - still gets 27 MPG.

I'd only run a synthetic if I had a turbo, or supercharged car.

[J&T's 82]

The only problem I have ever had from oil was from the old 80's Penzoil. I had to have a set of heads on a 305 vatted several times due to the paraffin. These days I use what ever the oil change place or the dealer puts in it. I have been driving cars for 25 years and have never had an engine problem due to oil.

[thesource]

I use Advance Auto Parts house brand oil and a Ford Motorcraft filter every 4K and have never had a single issue either. In fact, most of the time, other than the oil looking slightly darker, it still looks pretty damn good when I change it.

In my wires car, I use Ford Motorcraft oil and filter every 5K and basically the same thing. The oil looks slightly darker but still very clean and probably good for another 5K if I wanted to push it.

[War Machine]

A friend of mine has a 5.3 chevrolet with over 400k miles. For the past 120k miles he has NEVER changed the oil or filter. The truck has an oil leak, so he add oils when it leaks out. The truck doesn't smoke at all and runs fine to this day. My point is, if he can do that and use the cheapest oil he can find, what the hell makes one think oil brands really make that big of a difference? I mean, I use good oil in my cars for peace of mind, but his situation has to make you scratch your head.

[SS Junk]

scamsoil

its the amway of oils

That's the way I feel about it as well. I used it a few times in the mid 90's and back then it was something like $60 for oil and filter and recommended 7K change. Fuck that. I used a conventional brand on a car that had 23K miles on it and drove it to 210K miles with absolutely no issues. Engine never burned a drop. All I did was change it every 3K miles religiously.

[SMEGMA STENCH]

I guess i will qualify as a tinhat for saying this but... manufacturers don't want their engines to last forever. That would be real bad for business

[TENGRAM]

What oils are used by what manufacturers as a factory recommended fill?

Mobil 1... BMW. Not that I care for either...

[Badass2000GT]

Mobil 1 for gassers, Rosmella in diesels...

X2

[Pooter]

Mobil 1 for gassers, Rosmella in diesels...

[Tyrone Biggums]

If it was so good atleast one manufacturer would use it as a factory fill and the only folks that drag it in to my shop are the type that have a automotive tin foil hat on and magnets on their fuel line . If it was so good it would be more popular . I see good commercials for all sorts of shit at 3:00 am .

I couldn't care less about who drags what in to your "shop" and I never touted anything as being "so good". Just curious to know how Amsoil as a company compares to Amway. So, Amsoil runs 3a.m. infomercials? Good to know. What oils are used by what manufacturers as a factory recommended fill?

[Reefer Rae]

Oh, really? How so? I would like to hear this.

If it was so good atleast one manufacturer would use it as a factory fill and the only folks that drag it in to my shop are the type that have a automotive tin foil hat on and magnets on their fuel line . If it was so good it would be more popular . I see good commercials for all sorts of shit at 3:00 am .

[Reefer Rae]

My work car (91 honda civic ) gets whatever is on sale or free at my shop . And gets serviced somewhere between 5000 and 10000 miles . Just now at 365,000 miles has the factory head gasket failed and due to the age it's retired . The advances in oil since the old days are crazy . Run whatever and keep it full and you will have something fail well before the bearings wear out . Ps the car is beat on like a pit bull in the ghetto . And the head gasket failure is due to a OE heater hose failure after 21 years of abuse .

[Tyrone Biggums]

scamsoil

its the amway of oils

Oh, really? How so? I would like to hear this.