I recently did an oil and filter change on my '13 Scion XD. This has the 2ZR-FE 1.8 engine like Corolla's from a generation or two past. Standard MPFI. The interval was 13 mo. and about 4800 mi. I have never gone that long on time in my life before this.
I'm looking for opinion or knowledge specific to this car or use pattern, regarding the time interval. It's a '13 XD that I bought in '16 at about 35k mi. Now at 60k mi. Up until two years ago it saw about 7-8k mi. a year and got 6-7 mo., 3.5-4k oil changes. It now does about 5k a year which is why I left it go a bit over a year. Factory change interval is 10k max and 0W20 oil only mandated. Oil used in my ownership has always been Valvoline 0W20 full syn. Previously known for sodium and now, not. I believe it's currently the "Advanced". Wix ( now China for this appl.) Mann or Denso cartridge filters. This car sees much short 2 mile round trip use, 3 times a week including cold weather starts. Longer 20-30 mile trips about once or twice a week. Likely meets somebody's standard for severe use.
Am I risking varnish build up in things like VVT systems or fuel dilution from such a long OCI?
I'm looking for opinion or knowledge specific to this car or use pattern, regarding the time interval. It's a '13 XD that I bought in '16 at about 35k mi. Now at 60k mi. Up until two years ago it saw about 7-8k mi. a year and got 6-7 mo., 3.5-4k oil changes. It now does about 5k a year which is why I left it go a bit over a year. Factory change interval is 10k max and 0W20 oil only mandated. Oil used in my ownership has always been Valvoline 0W20 full syn. Previously known for sodium and now, not. I believe it's currently the "Advanced". Wix ( now China for this appl.) Mann or Denso cartridge filters. This car sees much short 2 mile round trip use, 3 times a week including cold weather starts. Longer 20-30 mile trips about once or twice a week. Likely meets somebody's standard for severe use.
Am I risking varnish build up in things like VVT systems or fuel dilution from such a long OCI?
