Castrol Magnatec Fuel Saver 5W-30 Questions & Answers

yes it is fine , here in Australia summer time we can get 35-40 degree C. Magnatec is good for both winter and summer.

Thank you,

What about addinol 5W-40? which of them will gave me a better motor performance?

in Summer time you won't feel any differences.

Thank you for your kind advise.

1-Would you please advise about 10W-40,

2-Also please advise which oil is preferred :

10W-40 or 5w-40 or 5w-30 (for Geely Emgran X7 , 2014) ?

You can only try.And don't be fooled by dealer servicing .do it your self or find a good service shop

Yes in my experience Magnatec would help. I have tried a Fully synthetic oil Castrol edge which did the exactly same thing? was not impressed as it was a whole lot more expensive. I don't know Motorcraft oil as it's not one of the south African brands. I speak from my own experience and use Magnatec in all my cars now. A 2004 Nissan Almera 1.6, 1996 golf mk1 1.3 and a 1989 Honda Balade 1.5 hope this helps? As you can see I'm confident that this is an awesome product. Regards, Gavin

Good morning. The Castrol Magnatec 5W-30 should be fine. Have you also changed the oil filter? Regards.

I have only used magnatec 10w-40 NOT The fully synthetic one ie. 5w-30. in Johannesburg SA the temperatures range between 12 degrees C to 36 degrees C if that gives an indication. My car did NOT like the fully synthetics at all and actually become worse. The magnetec 10w-40w seems to have the spot perfectly. I'd would try it as it will definitely not do any harm. It's not going to extreme being mineral and synthetic base. I think right from start up you would notice the difference and I'm hazarding a guess so will the rattle. I would stay away from fully synthetics as I've noticed they are to "THIN" for my car and the engine being quite old 1997 likes the 10w-40w. All the best.

Good morning. If your car's engine is a petrol engine then Castrol Magnatec would be correct. However, please refer to your car's owner's manual. You need to know if your car requires a fully synthetic oil or not. Castrol Magnatec now comes as a part synthetic as well as a full synthetic oil. The noise you describe sound as if there is no oil on the valve tappets/camshaft at start-up. Magnatec would certainly help in this case. Regards.

Good morning, I am not sure what the apisn means or stand for, but the ACEA A5/B5 oil is apparently not suitable for all engines. Please refer your question to your car's manufacturer. Regards.

A1/B1 Stable, stay-in-grade oil intended for use at extended drain intervals in gasoline engines and car & light van diesel engines specifically designed to be capable of using low friction low viscosity oils with a high temperature/high shear rate viscosity of 2.6 mPa*s for xW/20 and 2.9 to 3.5 mPa.s for all other viscosity grades. These oils are unsuitable for use in some engines. Consult owner manual or handbook if in doubt.

A3/B3 Stable, stay-in-grade oil intended for use in high performance gasoline engines and car & light van diesel engines and/or for extended drain intervals where specified by the engine manufacturer, and/or for year-round use of low viscosity oils, and/or for severe operating conditions as defined by the engine manufacturer.

A3/B4 Stable, stay-in-grade oil intended for use in high performance gasoline and direct injection diesel engines, but also suitable for applications described under A3/B3.

A5/B5 Stable, stay-in-grade oil intended for use at extended drain intervals in high performance gasoline engines and car & light van diesel engines designed to be capable of using low friction low viscosity oils with a High temperature/High shear rate (HTHS) viscosity of 2.9 to 3.5 mPa.s. These oils are unsuitable for use in some engines. Consult owner manual or handbook if in doubt.

Likely similar to other oils / oil should be checked and changed on regular intervals