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Tony S

10-02-2019 07:19 AM

Oil change and filter 87 7.4 V8

Hi
Looking for the easiest way to change the oil on our 87 242ls 7.4 V8. The manuel calls for a straight weight 40 SF oil. I don’t know if that’s changed over time. I can’t find the oil filter size or fuel/ water separator size. Any info would be appreciated.
As always, my thanks for any information.
Tony S

Redneckcustoms13

10-02-2019 09:16 AM

I dont have filter numbers. I just match them up. But I run 15w-40 rotella in my engines.

ph1971

10-02-2019 06:48 PM

<div style="text-align:left;">Search 87 mercruser 7.4 service manual and download the pdf. This will have everything you are looking for now and in the future. Great resource.</div>

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