Engine oil Shell or OEM Honda

I put used vegetable oil in my Honda Accord 7k intervals has 380,000 miles on it

I've been running cheap Rotella T6 for 20 years with modified STIs, zero issues.

I use Rotella T4 on my 2.5L and have been for years because high ZDDP helps with the valve tapping I have going on. It has actually gotten quieter over time and feel the engine is running smoother than ever.

I’m using the 0w16 from Renault that probably is a Shell RN17, I have about 25.000km now and I will do the third change on the beginning of next year… but in the sandero that I also own I changed to 5w30 (from 0w20) both RN17 and the engine feels way softer and silent…

gamit ko yung city scooter sa adv ko. laki ng nabawas sa vibration nakaka 2500km palang ako with this.

Shell, better oil and last longer. I use petronas cepat habiss woo minyak walhal jalan sama je balik kerja.

900 rs shell engine oil for my scooty. Amazing. Smooth roses amd better mileage.

All three I ran Rotella T6 5w-40. I ran 5K oil changes with OEM or WIX filters. All had Blackstone oil analysis done, and all passed every time with flying colors.

I ran 10W-50 and 10W-60 for a few years in an old and beaten up Honda in the hope of reduce oil consumption to avoid having to open the engine. Long story short: it's not harmful, it's an expensive gimmick, the only real-life effect is fuel consumption will slightly worsen and that Honda had occasional issues with VTEC (a well known issue in those engines when running high viscosity oils).

We had a guy trade in a 10th gen Honda Civic with the L15BE (known for head gasket failure mostly) that he filled with thicker oil. Started knocking like crazy when we changed the oil for the sale.