What's the difference to a car owner

[LarryL]

Syntec German 0w-30*
ACEA: A3, B3, B4; VW 502 00, 505 00, 503 01; MB 229.1, 229.3, 229.5; BMW LL-01; GM-LL-A-025, GM-LL-B-025 and the engine protection requirements of ILSAC GF-3 for API Certified Gasoline Engine Oils.

Mobil 1 0w-30*
# GM 6094M, GM 4718M (Corvette spec)
# Ford WSS-M2C929-A
# ILSAC GF-4
# API SM/CF
# ACEA A1/B1

Does it mean that the Syntec has a lot more certs and may be a better choice, if the oil you need is a 0w30 and you're willing to spend the extra for a synthetic oil. They are pretty close to the same price, although Mobil 1 is available in a lot more places.

*cut from their respective web sites.

 

[TooSlick]

Most of the Euro specs require a HT/HS viscosity of at least 3.5 Cp @ 150C. This is the main reason most xw-30 synthetics don't technically meet this spec, even if they met the requirements for wear,deposits, etc.

Even the Amsoil 5w30/10w-30 are now formulated thinner and are ACEA A5/B5 oils, but don't technically meet these Euro specs anymore.

TS

 

[surfstar]

How about some free synthetic? If you haven't use the rebate from Maxlife.com yet, its quite a good deal for a decent oil.

Maxlife Syn 10w30
100*C 11.51
40*C 72.28
TBN 10
Flash Pt *C 230
Pour Pt *C -42
Noack 8.31
date 9/2/2004

API SL/SJ, ACEA A3/B3/B4, BMW LL01/98, VW502.00/505.00, MB229.3/229.1

 

[Louie's gone fishing]

Maxlife looks like on paper to have much better specs than M1, and if it's free, that's a lower price, too. But, do you have a user id and password, and how does one get one.

 

[Louie's gone fishing]

I looked up Maxlife and SynPower on the Valvoline site. So, Maxlife is a GIV and SynPower is a GIII? And Maxlife is for engines with over 70k miles.

 

[LarryL]

What's the difference between GC's GF-3 rating and M1's GF-4? Does it mean that GC is outdated?

 

[Louie's gone fishing]

GF-4 is for thinner oils that slip better than GF-3.

 

[farrarfan1]

quote:

---

Originally posted by Louie's gone fishing:
GF-4 is for thinner oils that slip better than GF-3.

---

Louie can you explain how much difference in "slip" there is between a GF-4 and a GF-3 rated oil and also how is "slip" measured?

 

[G-MAN]

quote:

---

Originally posted by Louie's gone fishing:
GF-4 is for thinner oils that slip better than GF-3.

---

 

[LarryL]

Isn't 'slip better' covered in the ILSAC G-4 rating that gets you an API certified star burst symbol. If an oil has a start burst it must slip better. Isn't that why 40+ weight oils, and thick 30 weights like GC will never get a star burst. They are too thick to slip better. I'll bet you won't see and star bursts on CJ-4 oils, either, big trucks don't slip. So, esentially someone is right, thin GF-4 oils slip better.