Originally Posted By: itguy08
Originally Posted By: Branson304
Ford's oil life monitor was designed with Motorcraft synthetic blend. I'm sure Ford would much rather you use a synthetic blend or synthetic with the oil life monitor. NO WAY I would trust a conventional as far as my Ford OLMs take me. It takes me almost 10,000 before a change on the Taurus & the trucks signal at 6,000-7,000 with a lot of light to medium towing. I always use a blend or full synthetic. If I wanted to use conventional then I'd change it before the OLM told me to.
Actually the IOLM is calibrated to whatever oil meets the Ford spec. Be that synthetic or conventional. There is nothing in the owners manuals or any service documentation on synthetic blend, full synthetic, or conventional. Only that the oil needs to meet the Ford spec.
But Ford did design the IOLM with Motorcraft synthetic blend. Look it up. Since they designed it on synthetic blend, I wouldn't use a conventional. It just doesn't make sense to do so. Why would you use an inferior oil with the IOLM? Conventional is priced too high anyway, there's almost no reason to use it these days. Synthetic sale prices are dirt cheap & you can get synthetic blends & even a couple synthetics for the same cost or $1-$3 more than a conventional. Rant over, anyway.
Originally Posted By: Branson304
Ford's oil life monitor was designed with Motorcraft synthetic blend. I'm sure Ford would much rather you use a synthetic blend or synthetic with the oil life monitor. NO WAY I would trust a conventional as far as my Ford OLMs take me. It takes me almost 10,000 before a change on the Taurus & the trucks signal at 6,000-7,000 with a lot of light to medium towing. I always use a blend or full synthetic. If I wanted to use conventional then I'd change it before the OLM told me to.
Actually the IOLM is calibrated to whatever oil meets the Ford spec. Be that synthetic or conventional. There is nothing in the owners manuals or any service documentation on synthetic blend, full synthetic, or conventional. Only that the oil needs to meet the Ford spec.
But Ford did design the IOLM with Motorcraft synthetic blend. Look it up. Since they designed it on synthetic blend, I wouldn't use a conventional. It just doesn't make sense to do so. Why would you use an inferior oil with the IOLM? Conventional is priced too high anyway, there's almost no reason to use it these days. Synthetic sale prices are dirt cheap & you can get synthetic blends & even a couple synthetics for the same cost or $1-$3 more than a conventional. Rant over, anyway.