
Good for anyone. NOTE: Of video purpose relating the "RPM alarm function" in the C5 HUD , This video mentions "mixed fleet" (multi fuel diesel and petrol) engine oil "Top Dog global CJ4 "as more suitable against "Top Dog CK-4" (However, for those only comfortable with passenger vehicle mixed fleet Syn-X 6000 can be found in Australia from some suppliers at reasonable cheaper cheap skate price and as closer fit 5w-40)! warning: Also use ONLY oils that suit legal pollution emission standard treatments (of your countries laws). mentioned below are oils suiting mixed fleet (petrol diesel) for post 2002, 2007 and updated upgraded oils post 2007 , 2014 "vehicles emission control systems" (CK-4 and Synfleet MX(emission Syd. 2014-18 approx.) ) are the only two present date qualifiers, others are for most 2007 standards. (Referring to using 20 Litre drums DIY, At being a cheap skate , prices from suppliers vary but can be found cheaper, unfortunately Synfleet MX is both uncommon but also expensive) That is only because car manufacturers mainly recommend only using "full synthetic engine oil", AND the CK-4 variety is only made in "15w 40 mineral engine oil" , whereas, the Top Dog global plus CJ4 is made in "both 10w 40 , and 15w 40 semi synthetic". If your vehicle engine is able to use mineral engine oil as stated by the vehicle manufacturer and the cold-hot test numbers of 15w-40 align sufficiently, than CK-4 is the (better quality) superseding product global plus CJ4. Commercial fleet vehicles , light passenger to heavy goods using the same oil type for all in the fleet, "have control modules to prevent exceeding RPM" , this limiter mechanism is not for speed, it is for engine protection! WARNING If you use an engine oil value of +/-10 on its hot test number the limitation is approximately only 2/3rds of the RPM band and the last 1/3 of RPM levels to the red line "must not ever (must never) be reached" or it could explode the oil pump! (apart engine fuel type specification of the oil use). Similar terms with winter or severe cold, if the oil is more thick syrup number, only half the RPM band is allowed used for the first ten minutes (unless the "W" number is excessively watery and thin compared to the correct requirement of that engine model)! e.g 4 cylinder with a "red line of 6000 RPM" , only 0 - 4000 (4500) RPM hot, and cold start 0 - 3000 (3500) RPM for the beginning 10 minutes of engine on. (however , usually the "W" number is more thin oil). WARNIING! about the following list! If your vehicles or one of them "requires a cold test oil number W" below 10W there are only two or three in the list next that are manufactured as a 10w oil and will be the only choice you would/should use from the list! Examples of multi-fleet oil and and multi engine fuel type oils: Synfleet MX Top Dog global plus CJ4 CK-4 Syn X 3000 Syn X 6000 Syn X 4000 (depends your exact price and what's your poison) Unfortunately I cannot tell you which is best on any point for terms agreement in this site. If you use "both diesel and petrol" cars or light trucks or 4wd, the mentioned oils are "a real world example" of keeping "one type of oil (small barrel large barrel)" for all vehicles (the same as commercial busines keeps a fleet) , and your engine will require management of RPM to operate safely. WARNING 2 In the interest of safety and engine manufacturer common recommendation, half the list are "full synthetic", the most widely recommended, of which Syn-X 4000 is made to a viscous cold hot pair of 5w-30 , the majority of passenger 4 cylinder vehicles of diesel and petrol tolerances. Others in the list are ",semi synthetic" and/or mineral based! If you must perform "the trick" based on cost , Top Dog global plus 10w-40 is the best for DIY for 4 cylinder passenger vehicles, but remember the RPM rules of use STRICTLY !!!!! FINAL WARNING: The above does not include any absolute oil and additive chemistry requirements, ALWAYS examine your engine manufa