Favorite Motor Oil

[Deanski]

Mobil 1 as they started this long ago when I was young.



Gee no one for that new Zymol oil?



Regards,

Deanski

 

[hkross]

O'Reillys brand they say it it made by Valvoline company.

 

[audio1der]

I'm happy with Royal Purple.

 

[paco]

Royal Purple -



Basically, for the same $$$ or even less, there are much more robust and quality oils out there. I'd avoid it as there is a question of it's ability to maitain it weight rating not shearing quickly ...



Used Oil Analysis example of what people are encountering:



Virgin Analysis (http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=11;t=000025)



Copper 0

Iron 0

Chromium 0

Lead 0

Aluminum 1

Silicon 2

Tin 0

Moly 112

Sodium 0

Magnesium 11

Zinc 867

Potassium 0

Phosphorus 786

Calcium 1670

TBN 8

Viscosity 11.4



Used Oil Analysis (http://theoildrop.server101.com/ubb/ultimatebb.php?ubb=get_topic;f=3;t=000441#000000)



This is the latest oil analysis on my wife's car, done by Wearcheck Mississauga (with interpretation to be done by Terry Dyson)



Here is the data:



2000 Honda Civic

1.6L non Vtec engine, 106hp, automatic

5w30 Royal Purple (SL formula)

2600 miles on oil/42,000 miles on engine

K&N oil filter

Fram air filter

Oil was run from Nov 23 to Mar 29 (20 weeks)

No top up oil

She does 90% city type driving, she does about 125-150 miles/wk

Extremely cold winter weather (most mornings below 10F, some

mornings as low as

-10F), car is garaged overnight though







code:

--------------------------------------------------------------------------------



Iron 9.2

Lead 3.8

Aluminum 4.7

Copper 2.1

Silicon 5.2

Nickel 0

Chromium 0.8

Titanium 0.1

Tin 0

Silver 0.4

Vanadium 0.2

Potassium 0

Sodium 0.5

Boron 6.9

Barium 0.1

Manganese 114

Calcium 1629

Magnesium 234

Moly 92

Phosphorus 757

Zinc 916

Sulfur 8677

Fuel 0%

Glycol 0%

Water 0%

Sulfation 61%

Oxidation 48%

Nitration 35%

VI 160

Vis @ 40c 49.0

Vis @ 100c 8.8

TBN 4.70



--------------------------------------------------------------------------------



note: this lab's TBN is lower (4739 scale).





I had a virgin sampleof this exact batch of oil done by Terry Dyson last fall, and the viscosity was 11.4 cst at 100c, so this oil thinned out considerably in a short interval! I'm not impressed. Wear metals are pretty high for such a short interval too (although it could be Royal Purple cleaning out old wear metals like Redline does) My sister's 8k run with Mobil 1 in the exact same engine looked better than this run in many areas, including TBN.



After I sample this oil I put in a fresh batch of Royal Purple and another K&N oil filter. The plan was to run this batch until October (approx. 5-6k) and then put in the 0w30 Castrol SLX. But now I'm wondering if I should continue to run this oil. How can a fully synthetic oil thin out so much in such a short time? I'd hate to see this oil in a hard driven LS1 Corvette or F-body, if my wife's tiny motor can thin it out so much.



PS-this was the very first run with Royal Purple. Prior to this, the engine has seen nothing but Mobil 1 5w30, Trisynthetic, SJ formula (other than the first break in oil change which was with 3qts Valvoline 5w30 and 1qt Mobil 1 mixed)

 

[BA_Titan]

AMSOIL here......

 

[nonwelder]

I'd have to go with Mobil 1 if I am running synthetic, and either Mobil Drive Hard or Valvoline if I am going the dino/blend route.



Brett

 

[MBZ 500E]

Amsoil 10W40 High Performance Synthetic for my baby.:up

 

[panapower]

:shocked no votes for Royal Purple:nixweiss

i chose other cause of the fact that they DIDNT have RP as a choice. Royal Purple OwNz. :xyxthumbs

 

[peachypan]

Amsoil all the way! Ow30, can't beat the 30k drain intervals.

 

[paco]

Careful with those Amsoil drain intervals. You could be doing a lot of harm to your vehicle for modest saving of running a 15K internval which is very reasonable.



Idling, short trips can wreck havoc on motor so unless that 30K is all highway, I'd cut it much shorter.

 

[Lenny]

Amsoil or Mobil 1. Royal Purple is a bit too expensive. I don't know about it being questionable as to it's ability to hold it's viscosity, but I personally know the Royal Purple industrial products distributor here in Detroit (and they claim they have their fingers into the retail distribution of the car lubricants as well), and I know how these guys price, and RP is WAY over priced.

 

[Vegas1]

Mobil 1 in both cars.

 

[EricZ]

Mobil 1. If its recommended by Porsche, its good enough for me.

 

[ictoaln]

Redline---paying the extra bit of dough.

 

[paco]

Royal Purple, more UOA are coming indicating it isn't shear resistent. Go with something more robust such as Mobil, Amsoil or Redline.

 

[Kleanride]

Man, two days ago I ordered Amsoil online, I would guess around noon, yesturday afternoon it shows up at my door! Great packaging, and they threw in a couple different product brochures and such. I paid about 6 or $7 for the shipping, so its not like I paid for rush delivery or anything like that! AWESOME!!!

 

[Specsilver]

Mobil 1

 

[airjames]

<---------------------Amsoil here buddy.



BTW, does anyone have the Amsoil Bypass Filter system on there car/truck/whatever you have???? I know Amsoil makes 2 of these systems, the single Bypass and the Dual Remote filter system. Anyone have any info on these I'm all ears,,,,91

 

[topnotchtouch]

Nothing but Mobil 1 here!

 

[BA_Titan]

F150, I can email you some brochures if you want.... BTW AMSOIL here...