I recently (1500 miles ago) changed my oil in my 1996 Jeep Grand Cherokee 4.0l inline 6 cylinder with 126,000 miles on the engine and used a higher mileage oil with a 20W50 rating. With every oil change I add a fuel injector cleaner. But since this change I have been noticing my gas mileage has dropped significantly. My engine runs hot all of the time (210 on the gauge) and my region has been in and out of a heat wave for the last month or so. My question is, will the 20W50 oil hurt my engine, and would this oil cause the increase in gas consumption?
2006-08-17
08:50:38
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9 answers
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asked by
Joe
2
in
Cars & Transportation
➔ Maintenance & Repairs