Recent Topics
Meijer QSUD Full Syn 10w30 $8.11 5qt jug
by Spartanfool. 09/22/18 08:40 PM
Whats in your beef burger
by CourierDriver. 09/22/18 08:28 PM
Headlight brightness fluctuates on 1987 Golf
by vavavroom. 09/22/18 07:56 PM
"New" Beater
by SilverGt. 09/22/18 07:22 PM
Eschewing computer controls
by buck91. 09/22/18 06:41 PM
Leak/drip left front 13 Ram 4x4?
by irv. 09/22/18 06:22 PM
5w20 oil choices
by 53' Stude. 09/22/18 06:05 PM
site security
by RF Overlord. 09/22/18 06:02 PM
Richmond Raceway
by Warstud. 09/22/18 06:01 PM
Redline D6 ATF substituting for Toyota WS
by Patrick0525. 09/22/18 05:29 PM
XG3614 Cut Open 13,400kms (8,375mi)
by mcwilly. 09/22/18 05:25 PM
Torn Purolators: they DO TEAR!
by 53' Stude. 09/22/18 05:07 PM
transmission fluid and filter exchange
by Dennisistheman. 09/22/18 04:53 PM
Why people should change oil+filter!
by 53' Stude. 09/22/18 04:50 PM
Household lubricants (general purpose) differences
by 92saturnsl2. 09/22/18 04:35 PM
debris in my engine oil--what to do?
by Jasper8146. 09/22/18 03:50 PM
Is this seal bad?
by parshisa. 09/22/18 03:44 PM
Leather Masters Protection Cream review....
by gregk24. 09/22/18 03:13 PM
Aisin WS
by RodneyM. 09/22/18 03:11 PM
Husqvarna trimmer questions
by BrianF. 09/22/18 02:51 PM
Newest Members
HondaTech250, SandCruzer, sbgti96, cosmoblau, Sarrge
66044 Registered Users
Who's Online Now
80 registered members (A310, andyd, 53' Stude, Ag76, 92saturnsl2, aquariuscsm, 8 invisible), 1,420 guests, and 41 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics290,852
Posts4,851,473
Members66,044
Most Online3,590
Jan 24th, 2017
Donate to BITOG
Previous Thread
Next Thread
Print Thread
Hop To
is Rejendra Petkar of TATA correct--? #4465241
07/20/17 05:48 PM
07/20/17 05:48 PM
Joined: Jun 2007
Posts: 3,475
Morris County NJ
steve20 Offline OP
steve20  Offline OP
Joined: Jun 2007
Posts: 3,475
Morris County NJ
--or is he making a play on words here
He states:
Speaking on oil consumption, Petkar observed that besides selecting low volatility base oil components, optimum viscosity also has a key role, as higher viscosity oils form thicker oil films, resulting in higher evaporation loss.
Reference:

https://fuelsandlubes.com/fli-article/lu...conomy-mandate/
The censored part of the link is [censored] ---believe it or not---
OK, censored again--c'mon guys loosen up a bit--if interested in reading article on the link use the first letter of the next 2 words: blue sky
Steve



Re: is Rejendra Petkar of TATA correct--? [Re: steve20] #4465254
07/20/17 05:54 PM
07/20/17 05:54 PM
Joined: Oct 2009
Posts: 3,947
Ohio
L_Sludger Offline
L_Sludger  Offline
Joined: Oct 2009
Posts: 3,947
Ohio
Originally Posted By: steve20
--or is he making a play on words here
He states:
Speaking on oil consumption, Petkar observed that besides selecting low volatility base oil components, optimum viscosity also has a key role, as higher viscosity oils form thicker oil films, resulting in higher evaporation loss.
Reference:

https://fuelsandlubes.com/fli-article/lu...ies-for-indias-[censored]-vi-and-fuel-economy-mandate/
The censored part of the link is [censored] ---believe it or not---
OK, censored again--c'mon guys loosen up a bit--if interested in reading article on the link use the first letter of the next 2 words: blue sky
Steve
Briggs & Stratton condensed to the first letters of the two words in the marque's name.


too many cars and oil combinations to list in 150 characters or less
Re: is Rejendra Petkar of TATA correct--? [Re: steve20] #4465265
07/20/17 06:01 PM
07/20/17 06:01 PM
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
Entirely dependent on the nature of the base oils in question ... Group I & II maybe (and I'm sure there is much of that in India ...).

Group II+, III and above, not very likely laugh


Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.
Re: is Rejendra Petkar of TATA correct--? [Re: steve20] #4465445
07/20/17 08:25 PM
07/20/17 08:25 PM
Joined: Jun 2007
Posts: 3,475
Morris County NJ
steve20 Offline OP
steve20  Offline OP
Joined: Jun 2007
Posts: 3,475
Morris County NJ
thanks Broc--wouldn't it be logical to think for 2 oils with the same NOACK, the higher viscosity oil/thicker film would lead to less evaporation loss?
Steve



Re: is Rejendra Petkar of TATA correct--? [Re: steve20] #4465633
07/20/17 11:17 PM
07/20/17 11:17 PM
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
BrocLuno Offline
BrocLuno  Offline
Joined: Sep 2015
Posts: 5,858
Kalifornia Kollective
Sure, as discussed many time over in HDEO forums, high viscosity oils almost always have lower NOACK and vapor losses. It's the 5 grade with a ton of VII's so it can make the 5W-30 rating that will boil off like blood in outer space laugh

Many, many trucking companies run 25,000 mile oil changes on big rigs with good old Grp II+ like Delo400 and get good UOA's. No excess thickening due to light hydrocarbon losses.

Many auto MFG's call for heavier oils when the cars are going to be tracked with the associated higher sustained heats. Even though they know that the fluid friction will go up and add to the heat load, they want film thickness. Mobil1 15W-50 anyone laugh

Last edited by BrocLuno; 07/20/17 11:21 PM.

Formerly in marine engineering. In an earlier life I owned my own petroleum tank truck, and hauled for the majors and independent's.

BOB IS THE OIL GUY® Powered by UBB.threads™