fenks "pjezo" <nera.to.mailo@spam.com> wrote in message news:hboqcv$fgf$1@trimpas.omnitel.net... > angliskai skaitom? > jei taip-tuomet prasom: > > SPECIFICATIONS > > Specifications are important as these indicate the performance of the oil > and whether they have met or passed the latest tests or whether the > formulation is effectively obsolete or out of date. > There are two specifications that you should look for on any oil bottle > and these are API (American Petroleum Institute) and ACEA (Association des > Constructeurs Europeens d'Automobiles) all good oils should contain both > of these and an understanding of what they mean is important. > > API > > This is the more basic as it is split (for passenger cars) into two > catagories. S = Petrol and C = Diesel, most oils carry both petrol (S) and > diesel © specifications. > > The following table shows how up to date the specifications the oil are: > > PETROL > > SG - Introduced 1989 has much more active dispersant to combat black > sludge. > > SH - Introduced 1993 has same engine tests as SG, but includes phosphorus > limit 0.12%, together with control of foam, volatility and shear > stability. > > SJ - Introduced 1996 has the same engine tests as SG/SH, but phosphorus > limit 0.10% together with variation on volatility limits > > SL - Introduced 2001, all new engine tests reflective of modern engine > designs meeting current emissions standards > > SM - Introduced November 2004, improved oxidation resistance, deposit > protection and wear protection, also better low temperature performance > over the life of the oil compared to previous categories. > > Note: > > All specifications prior to SL are now obsolete and although suitable for > some older vehicles are more than 10 years old and do not provide the same > level of performance or protection as the more up to date SL and SM > specifications. > > DIESEL > > CD - Introduced 1955, international standard for turbo diesel engine oils > for many years, uses single cylinder test engine only > > CE - Introduced 1984, improved control of oil consumption, oil thickening, > piston deposits and wear, uses additional multi cylinder test engines > > CF4 - Introduced 1990, further improvements in control of oil consumption > and piston deposits, uses low emission test engine > > CF - Introduced 1994, modernised version of CD, reverts to single cylinder > low emission test engine. Intended for certain indirect injection engines > > CF2 - Introduced 1994, defines effective control of cylinder deposits and > ring face scuffing, intended for 2 stroke diesel engines > > CG4 - Introduced 1994, development of CF4 giving improved control of > piston deposits, wear, oxidation stability and soot entrainment. Uses low > sulphur diesel fuel in engine tests > > CH4 - Introduced 1998, development of CG4, giving further improvements in > control of soot related wear and piston deposits, uses more comprehensive > engine test program to include low and high sulphur fuels > > CI4 Introduced 2002, developed to meet 2004 emission standards, may be > used where EGR ( exhaust gas recirculation ) systems are fitted and with > fuel containing up to 0.5 % sulphur. May be used where API CD, CE, CF4, > CG4 and CH4 oils are specified. > > Note: > > All specifications prior to CH4 are now obsolete and although suitable for > some older vehicles are more than 10 years old and do not provide the same > level of performance or protection as the more up to date CH4 & CI4 > specifications. > > If you want a better more up to date oil specification then look for SL, > SM, CH4, CI4 > > ACEA > > This is the European equivalent of API (US) and is more specific in what > the performance of the oil actually is. A = Petrol, B = Diesel and C = > Catalyst compatible or low SAPS (Sulphated Ash, Phosphorus and Sulphur). > > Unlike API the ACEA specs are split into performance/application > catagories as follows: > > A1 Fuel economy petrol > A2 Standard performance level (now obsolete) > A3 High performance and/or extended drain > A4 Reserved for future use in certain direct injection engines > A5 Combines A1 fuel economy with A3 performance > > B1 Fuel economy diesel > B2 Standard performance level (now obsolete) > B3 High performance and/or extended drain > B4 For direct injection car diesel engines > B5 Combines B1 fuel economy with B3/B4 performance > > C1-04 Petrol and Light duty Diesel engines, based on A5/B5-04 low SAPS, > two way catalyst compatible. > C2-04 Petrol and light duty Diesel engines, based on A5/B5-04 mid SAPS, > two way catalyst compatible. > C3-04 Petrol and light duty Diesel engines, based on A5/B5-04 mid SAPS, > two way catalyst compatible, Higher performance levels due to higher HTHS. > > Note: SAPS = Sulphated Ash, Phosphorous and Sulphur. > > Put simply, A3/B3, A5/B5 and C3 oils are the better quality, stay in grade > performance oils. > > > > "ramunas" <doobas@gmail.com> wrote in message > news:hbncab$9gv$1@trimpas.omnitel.net... >> matai kitas reikalas yra, kad pusiau sintetika ta 7Lt/ltr o mineralka >> 4,5Lt/ltr :) >> bet siaip idomumo delei butu paskaityti apie tas klasifikacijas >> >> >> "hedgehogus paiuricus" <ezimantas@gmail.com> wrote in message >> news:hbn8le$51q$1@trimpas.omnitel.net... >>> bent jau pagal API pusiau sintetika viena klase aukstesne uz mineralke, >>> taip >>> kad tegul mineralinis verslininkas eina issitrint galvos su alfa >>> aliofinais >>> >>> -- >>> eM >>> >>> >>> >>> | vienas tepalas ACEA E7,E5,E3,B3,B4,A3 ... API CI-4, CF/SJ/Sl pusiau >>> | sintetinis >>> | kitas tepalas ACEA A3, B4, E3, E5, E7 ... API CI-4/SJ mineralinis >>>