Can diesel oil lock a gas engine?

Asked by Aug 14, 2014 at 04:35 PM about the 2003 Toyota Camry LE

Question type: Maintenance & Repair

I went to oil express shop and asked if I needed oil, they checked and told me it was full. they told me pull it around in the bay and we will put something a little thicker to quiet your engine. They put 15-40 Diesel and car engine locked 15 minutes later. 2003 Toyota Camry

2 Answers

100,305

If it was making noise before they put oil in it the damage was already done. Did they drain out some oil before adding? As far as the oil causing a lock up I would have to say no, a loss of oil pressure is the most common in an engine locking up, not the oil itself.

yes, it was already making noise. They emptied 2 quarts from my car and replaced with 2 quarts of diesel 15-40.

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