 | Home > Technical > High HTHS vs low HTHS |
 
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| dgardel Member Since: 30 Nov 2008 Location: Veneto (Heart & Head) Posts: 3586  
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See and decide...
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IID Pro MV License |
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23rd Apr 2012 11:05pm |
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| pom Member Since: 01 Jun 2010 Location: Worcester Posts: 1343 |
what ?
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24th Apr 2012 11:44am |
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| rossy Member Since: 29 Nov 2010 Location: Co. Roscommon Posts: 1296  
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right over my head that. Too many words longer than marmalade
But next time I go to Halfords I'll take a printout of this thread, show it to their Saturday lad and say 'Give me an oil that does all that stuff please !' |
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25th Apr 2012 10:19pm |
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| noworries4x4 Member Since: 24 Dec 2010 Location: Newton Abbot Devon Posts: 1195 
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And the reply will be "do you want fries with that?" If everything is under control you are not going fast enough. Every Day 16 MY Discovery 4 Commercial Workshop and Escort Vehicle Weekends 07MY L322 TDV8 Vogue SE Series 1 80" 3ltr 6cyl with overdrive No Worries 4X4 |
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25th Apr 2012 11:01pm |
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| Naks Member Since: 27 Jan 2009 Location: Stellenbosch, ZA Posts: 2586  
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What's the HTHS of the Castrol Magnatec A1 Professional that the stealers use? --
2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear 2015 Range Rover Sport V8 Supercharged
Defender Puma Workshop Manual: https://bit.ly/2zZ1en9 Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ |
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30th Apr 2012 9:35am |
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| Lorryman100 Member Since: 01 Oct 2010 Location: Here Posts: 2686 |
Total base number (TBN) is a measure of a lubricant's reserve alkalinity. It is measured in milligrams of potassium hydroxide per gram (mg KOH/g). TBN determines how effective the control of acids formed will be during the combustion process. The higher the TBN, the more effective it is in suspending wear-causing contaminants and reducing the corrosive effects of acids over an extended period of time. The associated measurement ASTM D2896 and ASTM D4739-06 generally range from 6-80mg KOH/g in modern lubricants, 7-10mg for general automotive use and 10-15 for Diesel operations. Marine grade lubricants generally will run from 15-50mgKOH/g, but can be as high as 70 or 80mg KOH/g. This high level is designed to allow a longer operating period between lubricant changes under harsh operating conditions. When the TBN is measured at 2mg KOH/g or less the lubricant is considered inadequate for engine protection, and is at risk for allowing corrosion to take place. Fuels containing a higher amount of sulfur will decrease the TBN sooner due to the increased formation of sulfuric acid. HTH Brian. |
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30th Apr 2012 10:48am |
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| MK Member Since: 28 Aug 2008 Location: Santiago Posts: 2257  
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something like 3.0 or 3.1. Puma 110" SW ............................................................. Earth first. Other planets later |
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30th Apr 2012 3:09pm |
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| Naks Member Since: 27 Jan 2009 Location: Stellenbosch, ZA Posts: 2586
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thanks. Not too bad then? -- 2010 Defender Puma 90 + BAS remap + Alive IC + Slickshift + Ashcroft ATB rear 2015 Range Rover Sport V8 Supercharged
Defender Puma Workshop Manual: https://bit.ly/2zZ1en9 Discovery 4 Workshop Manual: https://bit.ly/2zXrtKO Range Rover/Sport L320/L322/L494 Workshop Manual: https://bit.ly/2zc58JQ |
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30th Apr 2012 3:17pm |
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