Should I make the switch from 0W40 to 15W50
03-08-2007, 06:10 PM
#19
Nordschleife Master
Originally Posted by cdodkin
Want some HP with that Dell? 
Originally Posted by nycebo
Dell, it'd be better if we could get OW-50; that way we would never have to discuss this ever again.
Amen to that brother.
03-08-2007, 06:18 PM
#20
Addict
Rennlist Member
Rennlist Member
It's been a long day and
Originally Posted by 1999Porsche911
Been waiting along time for some of these "facts" you keep mentioning? Having trouble finding some, are we?
1999, when you step up to the plate, and bear all fiscal responsibility for any engine related problems I might have as a result of following your advice that is contrary to the manufacture's, I'll use your recommendation. Until then, I wish you would just stop. I work all day handling service problems for a VERY large manufacturer of big yellow engines. We see your type all the time that think they have more knowledge than we have gained through development and testing of thousands of engines.
End of rant. You are now returned to your regulalry scheduled programming.
03-08-2007, 06:26 PM
#21
Burning Brakes
My Indy says they've had great luck with 15W50 , so he recommends getting it.
03-08-2007, 06:46 PM
#22
Banned
Thread Starter
Originally Posted by hwk72
What are we trying to get out of these discussions?
Originally Posted by hwk72
Better performance, longer engine life or what?
Originally Posted by hwk72
Had your Indy bad luck with 0W40 discoganya?
03-08-2007, 06:59 PM
#23
Race Car
Originally Posted by Fred R. C4S
I've finally snapped!
1999, when you step up to the plate, and bear all fiscal responsibility for any engine related problems I might have as a result of following your advice that is contrary to the manufacture's, I'll use your recommendation. Until then, I wish you would just stop. I work all day handling service problems for a VERY large manufacturer of big yellow engines. We see your type all the time that think they have more knowledge than we have gained through development and testing of thousands of engines.
End of rant. You are now returned to your regulalry scheduled programming.
1999, when you step up to the plate, and bear all fiscal responsibility for any engine related problems I might have as a result of following your advice that is contrary to the manufacture's, I'll use your recommendation. Until then, I wish you would just stop. I work all day handling service problems for a VERY large manufacturer of big yellow engines. We see your type all the time that think they have more knowledge than we have gained through development and testing of thousands of engines.
End of rant. You are now returned to your regulalry scheduled programming.
So, you work for CAT? You probably work for a buddy of mine, who is in charge of the engine division. Recently moved over from Marine. I personally know half of your BOD and used to work for your compensation chairmen.
Small world.
03-08-2007, 09:10 PM
#25
Originally Posted by Fred R. C4S
I've finally snapped!
1999, when you step up to the plate, and bear all fiscal responsibility for any engine related problems I might have as a result of following your advice that is contrary to the manufacture's, I'll use your recommendation. Until then, I wish you would just stop. I work all day handling service problems for a VERY large manufacturer of big yellow engines. We see your type all the time that think they have more knowledge than we have gained through development and testing of thousands of engines.
End of rant. You are now returned to your regulalry scheduled programming.
1999, when you step up to the plate, and bear all fiscal responsibility for any engine related problems I might have as a result of following your advice that is contrary to the manufacture's, I'll use your recommendation. Until then, I wish you would just stop. I work all day handling service problems for a VERY large manufacturer of big yellow engines. We see your type all the time that think they have more knowledge than we have gained through development and testing of thousands of engines.
End of rant. You are now returned to your regulalry scheduled programming.
I am using 0W-40.....my car seems happy.
JB
03-09-2007, 01:15 AM
#26
Drifting
What common sence tells you about oil has very little to do with fact. Thinner oils dissapate heat better than thicker oil. Oil sheer which in itself creates heat and friction is reduced in thinner oils. With ultra fine high micron machined finishes, close bearing to shaft clearances and ultra thin piston rings, thicker and heavier oils used in the past few years are no longer needed nor perfered. Many Techs, independent or otherwise know very little about lubricants. Most have opinions based on incorrect information they have received over the years.
The above are observations I have made about oils. I have studied them casually for years, talked with petrochemical engineers working for large motor oil manufacturers, I have built several successful roadracing motors and continue to build high performance motors with 5 in the works currently.
I'm not trying to convince anyone to use any particular brand, type or weight of oil, swaying your religious and political persuasion is probably easier.
The above are observations I have made about oils. I have studied them casually for years, talked with petrochemical engineers working for large motor oil manufacturers, I have built several successful roadracing motors and continue to build high performance motors with 5 in the works currently.
I'm not trying to convince anyone to use any particular brand, type or weight of oil, swaying your religious and political persuasion is probably easier.
03-09-2007, 02:03 AM
#27
Instructor
You can get Mobil 1 5w50 here in the states... We had this thread a couple months ago:
https://rennlist.com/forums/showthre...&highlight=slr
I found that some Mercedes dealers in the US may stock and can order Mobil 1 5w50 by the quart; the part number is Q1090134 ($7 per quart, the fill for the SLR).
https://rennlist.com/forums/showthre...&highlight=slr
I found that some Mercedes dealers in the US may stock and can order Mobil 1 5w50 by the quart; the part number is Q1090134 ($7 per quart, the fill for the SLR).
03-09-2007, 02:09 AM
#28
Instructor
Forgot to mention one thing... You can get close to 5w50 by mixing 0w40 and 15w50 at a one to one ratio.
See https://rennlist.com/forums/showthre...&highlight=slr
In the thread I indicated that I had spoken with some tech guys at Mobil headquarters (800-662-5251), and they indicated that the 0w40 oil can be brought close to 5w50 levels by mixing 0w40 with 15w50 at about a 1 to 1 ratio. They also indicated that 5w40 Delvac won't be different than 0w40 for non-winter driving (driving in LA).
Enough with the fussing and go enjoy a drive!
See https://rennlist.com/forums/showthre...&highlight=slr
In the thread I indicated that I had spoken with some tech guys at Mobil headquarters (800-662-5251), and they indicated that the 0w40 oil can be brought close to 5w50 levels by mixing 0w40 with 15w50 at about a 1 to 1 ratio. They also indicated that 5w40 Delvac won't be different than 0w40 for non-winter driving (driving in LA).
Enough with the fussing and go enjoy a drive!
Last edited by Cydog; 03-09-2007 at 02:11 AM. Reason: misppellling
03-09-2007, 09:13 AM
#30
This is the most ridiculous debate ever. It makes the discussion of fuel quality look like metaphysics. There's no way to tell whether you are right or wrong about oil for, like, years. And only then if you have the equipment and skill to measure engine wear. The fact that your car seems "happy" or that you have had "no problems" is evidence of nothing. On that basis, I'd like to sell you a case of elephant repellent. I can personally vouch for the fact that not one pachyderm has darkened my door since the day I bought it. I also use it in the car now and, again, no elephants.
As with most things on the internet, the passion in the argument is inversely proportional to the evidence available. I'm just going to stick with whatever it says in the manual.
PM me if you want some of that elephant repellent. Willling to consider discounting for a group buy.
As with most things on the internet, the passion in the argument is inversely proportional to the evidence available. I'm just going to stick with whatever it says in the manual.
PM me if you want some of that elephant repellent. Willling to consider discounting for a group buy.