Wanna do the right thing
so what should I use?
Thanx
Rob
so what should I use?
Thanx
Rob
Why all the hype on a product that doesn't exist anywhere anymore?quote:
Originally posted by pscholte:
And your point is?quote:
Originally posted by Ray H:
Some around here would have you feeding GC to everything from your refrigerator door hinges to your pencil sharpener.![]()
Seriously, Ray, when an oil as special as GC (proven as special in UOAs and in rigorous testing) I find no reason to recommend something else UNLESS: (1) a particular engine has already demonstrated a perfect match with another oil or (2) I believe it would be one of those rare cases where it just wouldn't be right for that application (e.g an SUV operated off-road--for real--year-round in Arizona, Southern Utah or Nevada, then it is M1 T&SUV). Also, I don't think you should downplay the demands of a 24v engine, although granted they don't all need M1 0W-40.![]()
PS I have used GC in my Taurus with excellent result...gas mileage improved about 2.5 to 3.5 mpg highway and about 2.5 city. I saw a consistent mpg improvement over time, not just as "a one tank wonder."
FV,quote:
Originally posted by FowVay:
Pscholte, I'd truly like to learn the specifics involved with repeated fuel economy increases related to the use of the GC. I'm not certain but I don't believe GC is friction modified (carries the API donut but not the starburst) and it certainly shows greater resistance to flow at higher temperatures than other lubricants in the same viscosity range (Kv's starting at 12 cSt's is nearing the 40 grade).
A 10% fuel economy increase (2½ to 3½ mpg in a 20 to 30 mpg vehicle) over comparable products under the same circumstances is certainly notable.
I believe SLX had the old Energy Conserving II rating, although it doesn't have the Starburst. Also if you meet the API starburst and want to use the package you have implied energy conserving so you would have to meet the ACEA spec. for that. Which you might not be able to do, because of the different reference oils.quote:
Originally posted by FowVay:
Pscholte, I'd truly like to learn the specifics involved with repeated fuel economy increases related to the use of the GC. I'm not certain but I don't believe GC is friction modified (carries the API donut but not the starburst) and it certainly shows greater resistance to flow at higher temperatures than other lubricants in the same viscosity range (Kv's starting at 12 cSt's is nearing the 40 grade).
A 10% fuel economy increase (2½ to 3½ mpg in a 20 to 30 mpg vehicle) over comparable products under the same circumstances is certainly notable.
Any of the 5w20's will work well. If it were my car payment, I'd use a full synthetic especially since you have a bunch of cams and cold winters!quote:
Originally posted by atsoca:
Wanna do the right thing
so what should I use?
Thanx
Rob
And your point is?quote:
Originally posted by Ray H:
Some around here would have you feeding GC to everything from your refrigerator door hinges to your pencil sharpener.![]()
In order: No, not by a long shot; M1 0W-30 and 0W-40; I was using the latter just before I put in the GC; take a look at the UOAs that have been posted; show me an oil that performs as consistently in a wide variety of vehicles and under varying conditions to include drag strip time; I'm already ready for you to tell me Havoline is better; if that is what you believe that is fine...but tell me this...where is YOUR empirical data?quote:
Originally posted by drums57:
Hi Pscholte, do you work for Castrol. What engine oil did you use before GC came along. I never saw a UOA from you using GC , yet you praise it like its the best thing sense, well you know what i mean.