What oil do you use with your engine?

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SilentRavens

Senior member
Aug 20, 2003
666
0
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www.mhughes.info
10W40 of whatever brand I happen to have at hand. Usually Valvoline or NAPA auto parts select. The engine has 150000+ miles on with conventional oil, something tells me switching over to synthetic oil would not be a good idea.

Besides, it burns less oil than the factory spec, and doesn't leak a drop (amazingly).
 

RU482

Lifer
Apr 9, 2000
12,689
3
81
is royal purple oil actually purple??

and if so, why color is it at oil change time??

this applies to any other funky colored oils
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
50,419
8
81
Originally posted by: redly1
is royal purple oil actually purple??

and if so, why color is it at oil change time??

this applies to any other funky colored oils
Black.

All engine oil will turn dark after just a few thousand miles. Carbon.

And yes, the virgin oil is purple.
 

rufruf44

Platinum Member
May 8, 2001
2,002
0
0
Originally posted by: Eli
Originally posted by: CRXican
Valvoline

avoid Penzoil at all costs
Nothing wrong with Pennzoil. They're average/above average, actually.

Avoid:

5W-30/10W-30

Quaker State Peak Performance
Quaker State Multigrade
Castrol GTX
Wal-Mart SuperTech
Mobil Drive Clean Plus

All of these oils perform about the same. There is nothing really wrong with them, they just spec lower than other readily available oils.

Surprisingly, Havoline and Valvoline's synethetics rank right up there with AMSOil and Red Line.

Just above Mobil1 SuperSyn.

However, Mobil Delvac 1300 Super is a conventional oil that specs just as good as Mobil1 SuperSyn. Of course, without some of the benefits of synthetic - like an ultra low pour point.


I thought Valvoline has the weakest addictive package in their conventional dino among the major brands? Personally I think all SM rated oil is fine, but Havoline has ungodly amount of moly though, so thats what I use :)

 

middlehead

Diamond Member
Jul 11, 2004
4,573
2
81
At the moment, whatever the shop filled it with when they put the new motor in.

We'll see what else next time I change it
 

Eli

Super Moderator | Elite Member
Oct 9, 1999
50,419
8
81
Originally posted by: rufruf44
Originally posted by: Eli
Originally posted by: CRXican
Valvoline

avoid Penzoil at all costs
Nothing wrong with Pennzoil. They're average/above average, actually.

Avoid:

5W-30/10W-30

Quaker State Peak Performance
Quaker State Multigrade
Castrol GTX
Wal-Mart SuperTech
Mobil Drive Clean Plus

All of these oils perform about the same. There is nothing really wrong with them, they just spec lower than other readily available oils.

Surprisingly, Havoline and Valvoline's synethetics rank right up there with AMSOil and Red Line.

Just above Mobil1 SuperSyn.

However, Mobil Delvac 1300 Super is a conventional oil that specs just as good as Mobil1 SuperSyn. Of course, without some of the benefits of synthetic - like an ultra low pour point.


I thought Valvoline has the weakest addictive package in their conventional dino among the major brands? Personally I think all SM rated oil is fine, but Havoline has ungodly amount of moly though, so thats what I use :)
They probably do.

Notice I said synthetic. ;)

You absolutely cannot compare different oils from the same manufacturer, let alone different manufacturers or heaven forbid, different viscosities from different manufacturers.. lol
 

Chompman

Banned
Mar 14, 2003
5,608
0
0
Wait... cars need oil..:Q

I thought that hole was where you were suppose to pee in during long trips. :(
 

2cpuminimum

Senior member
Jun 1, 2005
578
0
0
Is there an independent oil review site that provides some sort of performance ratings for oil brands?
 

Vette73

Lifer
Jul 5, 2000
21,503
9
0
Actually Exxon/mobil supply over 90% of bulk oil out there for oil "makers". I think castrol sued them saying they were charging to much.

but i use the Mobil5000 in the old 160k+ buick and Mobil1 in the Corvette

just don;t use Fram oil filters. Anything but fram/honeywell made.
 

randomlinh

Lifer
Oct 9, 1999
20,846
2
0
linh.wordpress.com
hrm... on the oil note.. anyone found a place for german castrol other than autozone.. OTOH, it's nice that walmart carries mobile 1 though, 5qt for $22 :) Just wish they had extended performance..
 

amdskip

Lifer
Jan 6, 2001
22,530
13
81
Originally posted by: mrrman
amsoil synthetic....much less oil changes and the truck runs tighter
me too, usually change the oil once a year which is about 10,000 miles for me