Cord 810 motor oil

  • kazmieth
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13 Jun 2017 16:54 #33144 by kazmieth
kazmieth created the topic: Cord 810 motor oil
I'm doing my first oil change on my cord 810 since I purchased it in 2015, (Haven't driven it much). Any recommendations on the best oil to use?

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13 Jun 2017 18:24 #33145 by 1748 S
1748 S replied the topic: Cord 810 motor oil
Good question with many correct and not so correct answers.I believe most agree with a single grade oil and choose a 30 wt. As for running what brand or natural or synthetic is once again another good question. I recall our engines do not have crankshaft seals because the case runs under a very slight vacuum. That copper line running from the oil fill spout up under the air filter gets vacuum from the air being drawn in thru the carb. The camshaft does have seals on both ends of it similar to a crank main seal design.

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13 Jun 2017 23:54 #33147 by uconn_1965
uconn_1965 replied the topic: Cord 810 motor oil
I would stongly recommend 30W NON-DETERGENT oil. With the original system of the Cord with-out an external oil filter,
you want any sludge to accumulate at the bottom of the oil pan. and not be circulated thru the engine with detergent oil additives.
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14 Jun 2017 11:55 #33150 by Curt Schulze
Curt Schulze replied the topic: Cord 810 motor oil

The bitterness of poor quality remains long after the sweetness of low price is forgotten.
Be of Good Cheer
Curt

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  • Tim Gilmartin
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16 Jun 2017 15:46 #33162 by Tim Gilmartin
Tim Gilmartin replied the topic: Cord 810 motor oil
I have been using 30W, non-detergent oil in my Cord 810 for over 15,000 miles now. I faithfully change the oil every thousand miles. Works fine, running a long time.
I agree with Curt. Detergent oil will cause sludge to form.

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16 Jun 2017 17:17 #33163 by kazmieth
kazmieth replied the topic: Cord 810 motor oil
Thank you all for your help and info. This is more than I'd hoped for.

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