Hi all, I have just had a VOA done on a oil, and noticed that the TBN number is much different to what is listed on the spec sheet.
See link: http://tds-au.bp.com/bpglis/oztds3....e1e926c16f38064eca256512007c745f?OpenDocument
Product data sheet claims TBN of 10.5
VOA shows TBN of 7.9
Even the Vi index was lower by 8 units.
What's the go with these test sheets, don't they have to be even slightly close to what the product really is?
Do you guy's think that by dropping down to 7.9 from the impressive 10.5 there is much lost or much difference when used with a petrol engine?
See link: http://tds-au.bp.com/bpglis/oztds3....e1e926c16f38064eca256512007c745f?OpenDocument
Product data sheet claims TBN of 10.5
VOA shows TBN of 7.9
Even the Vi index was lower by 8 units.
What's the go with these test sheets, don't they have to be even slightly close to what the product really is?
Do you guy's think that by dropping down to 7.9 from the impressive 10.5 there is much lost or much difference when used with a petrol engine?