Thinnest and thickest 5w-20's ?

[Buick92]

I was wondering which 5w-20's were the thinnest and which were the thickest? I thought Castrol GTX was on the thick side, what about Chevron 5w-20?

 

[Jay]

If Redline's HTHS spec can be believed (and I don't think it's right), then Redline's 5w-20 is the thickest with a HTHS of 3.3 cP. I believe Mobil1's 5w-20 is thinnest with HTHS of 2.62cP.

 

[mechtech]

There were some posts about how Redline arrived at the high HTHS #s. They tested differently from the others.
It IS a good oil, however.

 

[Gary Allan]

Pennzoil conventional
8.2CST @100C

Mobil Clean 5000

8.5CST@100C

 

[Rodbuckler]

Some other notable 5W-20's:

code:

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Pennzoil Platinum 8.48cSt @ 100C

Quaker State Advanced 8.70cSt @ 100C

Mobil 1 8.8cSt @ 100C

Castrol Syntec 9.0cSt @ 100C

Castrol GTX 9.1cSt @ 100C

---

 

[black thunder]

what about Havoline, Mobil 5000, Motorcraft,etc.

 

[jorton]

quote:

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Originally posted by Buick92:
I was wondering which 5w-20's were the thinnest and which were the thickest? I thought Castrol GTX was on the thick side, what about Chevron 5w-20?

---

And which ones have the best add packs? Redline, Motorcraft?

 

[airwave]

Schaeffer Supreme 7000 5W20 is a good oil. Currently on my Honda Vtec engine.

 

[Raven18940]

All the 5w-20's seem to be a thick 20 (ha, what an oxymoron that is). You could probably swap in a thin 30 and they'd never know the difference.

 

[sdude2k2000]

Chevron / Havoline 5w20 are both 8.0cSt

 

[sxg6]

I put togeather this chart last month which might be helpful in answering your question

http://theoildrop.server101.com/cgi/ultimatebb.cgi?ubb=get_topic;f=1;t=015316

http://home.comcast.net/~apexigsx/5w-20synpds.jpg
http://home.comcast.net/~apexigsx/5w-20synpds.xls

[ July 17, 2006, 01:48 PM: Message edited by: sxg6 ]