News and guides from A4 Petroleum Sdn. Bhd., Malaysia.https://a4petroleum.com/https://a4petroleum.com/news/choosing-engine-oil-viscosity-5w-30-10w-30-10w-40/https://a4petroleum.com/news/choosing-engine-oil-viscosity-5w-30-10w-30-10w-40/What the numbers on an engine oil bottle mean, and how to choose between 5W-30, 10W-30 and 10W-40 for cars driven in Malaysia.Tue, 06 Oct 2026 00:00:00 GMThttps://a4petroleum.com/news/scaffold-safety-checks-before-use/https://a4petroleum.com/news/scaffold-safety-checks-before-use/A practical checklist for site supervisors and workers in Malaysia on what to check before using a scaffold.Thu, 01 Oct 2026 00:00:00 GMThttps://a4petroleum.com/news/engine-oil-api-sp-sn-ck-4-meaning/https://a4petroleum.com/news/engine-oil-api-sp-sn-ck-4-meaning/What do API SP, SN, CK-4 and ILSAC GF-6 mean on an engine oil bottle? A simple guide to choosing the right oil specification for your vehicle.Tue, 15 Sep 2026 00:00:00 GMThttps://a4petroleum.com/news/tube-and-coupler-vs-system-scaffolding/https://a4petroleum.com/news/tube-and-coupler-vs-system-scaffolding/Perancah tiub dan pengganding atau perancah sistem? Bandingkan fleksibiliti, kelajuan dan kegunaan untuk memilih perancah sesuai bagi tapak anda.Thu, 20 Aug 2026 00:00:00 GMThttps://a4petroleum.com/news/steel-fabrication-quote-what-to-prepare/https://a4petroleum.com/news/steel-fabrication-quote-what-to-prepare/Get a faster, more accurate steel fabrication quote. What drawings, materials, finishes and site details to prepare before you contact a fabricator.Wed, 08 Jul 2026 00:00:00 GMThttps://a4petroleum.com/news/preventive-maintenance-building-me-systems-checklist/https://a4petroleum.com/news/preventive-maintenance-building-me-systems-checklist/Senarai semak praktikal penyelenggaraan pencegahan sistem M&E bangunan di Malaysia: elektrik, penyaman udara, pam, perlindungan kebakaran dan banyak lagi.Fri, 26 Jun 2026 00:00:00 GMThttps://a4petroleum.com/news/lubricant-storage-handling-workshop-good-practices/https://a4petroleum.com/news/lubricant-storage-handling-workshop-good-practices/Pastikan minyak enjin bersih, kering dan sedia digunakan. Tujuh amalan mudah menyimpan dan mengendalikan minyak pelincir untuk bengkel dan armada di Malaysia.Thu, 14 May 2026 00:00:00 GMThttps://a4petroleum.com/news/working-at-height-in-malaysia-7-rules-for-safer-sites/https://a4petroleum.com/news/working-at-height-in-malaysia-7-rules-for-safer-sites/Falls from height are a leading cause of serious site injuries. Seven practical rules for planning and doing work at height safely in Malaysia.Thu, 23 Apr 2026 00:00:00 GMThttps://a4petroleum.com/news/carbon-steel-stainless-or-gi-pipe-which-should-you-use/https://a4petroleum.com/news/carbon-steel-stainless-or-gi-pipe-which-should-you-use/Carbon steel, stainless steel or galvanised iron pipe? Compare uses, corrosion resistance and joining methods to pick the right pipe for your project.Thu, 12 Mar 2026 00:00:00 GMThttps://a4petroleum.com/news/how-often-should-you-change-engine-oil-in-malaysia/https://a4petroleum.com/news/how-often-should-you-change-engine-oil-in-malaysia/Berapa kerap anda perlu menukar minyak hitam di Malaysia? Fahami jarak servis, keadaan pemanduan berat dan bagaimana jenis minyak mempengaruhi jadual.Wed, 11 Feb 2026 00:00:00 GMThttps://a4petroleum.com/news/hot-work-permits-what-they-cover-and-how-they-keep-sites-safe/https://a4petroleum.com/news/hot-work-permits-what-they-cover-and-how-they-keep-sites-safe/Apakah permit kerja panas, bila ia diperlukan dan apa pemeriksaannya? Panduan praktikal untuk kerja kimpalan, pemotongan dan pengisaran yang selamat.Wed, 21 Jan 2026 00:00:00 GMT