Originally Posted by
cwatkin
l run a full synthetic on my Geos but also figure they will need to be changed long before the spec on the oil because the engines are more worn.
I might just do an oil analysis one of these days but have more or less settled on 5,000 mile changes as of now.
Conor
Not sure it is justified. We ran 10k change intervals on '96 1.5L Mazda, which had similar gearing 3000 RPM at 60 MPH, and had no issues. Engine had gone over 400k without rebuild.
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View my fuel log 2015 Mirage DE 1.2 manual: 46.4 mpg (US) ... 19.7 km/L ... 5.1 L/100 km ... 55.7 mpg (Imp)