Mobil1 0W-40 496 HO
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Mobil1 0W-40 496 HO
Have put 20 hours on my new Donzi 27 ZR with a 496 HO.
As 25W-50 oil is not available locally, my only option was to put in Mobil 1 0W-40. Pressure at idle is 20 and at WOT 40 lbs.
Do you guys think this is fine ??
Furthermore, today while testing and keeping eyes fixed on the Oil pressure gauge I accellerated only to notice that my outdrive was half way up on the Drive gauge....hope no damage was done. I corrected this before hitting 3,500 rpm and then shifted at idle and heard nothing strange...hope I got away with it.
All input is highly appreciated.........
As 25W-50 oil is not available locally, my only option was to put in Mobil 1 0W-40. Pressure at idle is 20 and at WOT 40 lbs.
Do you guys think this is fine ??
Furthermore, today while testing and keeping eyes fixed on the Oil pressure gauge I accellerated only to notice that my outdrive was half way up on the Drive gauge....hope no damage was done. I corrected this before hitting 3,500 rpm and then shifted at idle and heard nothing strange...hope I got away with it.
All input is highly appreciated.........
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0W-40 is too light. You should run 15W50 Mobile 1. You should be running more than 40 psi of oil pressure at WOT.
Your u-joints are most likely fine after running the drive a bit high.
Your u-joints are most likely fine after running the drive a bit high.
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thanks for the quick replies. highly appreciated.
alternatively i can locate Mobil Super 20W-50 locally.
would that be better ??
should i drain the Mobil 1 0W-40 straight away or can I put a few hours on it withot harmin the engine ?
alternatively i can locate Mobil Super 20W-50 locally.
would that be better ??
should i drain the Mobil 1 0W-40 straight away or can I put a few hours on it withot harmin the engine ?
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Straight away. Then, like pachanga said, read your owners manual and use the oil they recommend.
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I'm not saying the synthetic isn't superior. I got it straight from Merc. Racing brass that the only reason they told me not to use synthetic in my 525efi's was that "they haven't tested it yet". Personally, I think a good synthetic is better in a high reving big block in the marine industry. However, MR said their oil is formulated to reduce moisture obsorbition in a marine application.
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In a 496 Merc engine run 15-40W 15-50W 0r 25-40W period! Absolutly no 0-anything oil!! As for brands , many good ones out there, Mercury, Royal Purple, Amsoil, certain Mobile 1's etc.
Regards,
Ray @ Raylar
Regards,
Ray @ Raylar