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What oil is best for first generations,

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Old 12-16-02, 08:37 PM
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What oil is best for first generations,
^^^^^ and what would be the next best thing to use?
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Old 12-16-02, 08:41 PM
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I like using 20w-50
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Old 12-16-02, 08:59 PM
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That's what I use!
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Old 12-16-02, 09:06 PM
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I use 20w-50 mixed with 1/2 quart MMO
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Old 12-16-02, 09:07 PM
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I prefer the 10w-30, but the 20w-50 is a little more resilient against the heat, dosent burn quite as well as the 10w-30 though.
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Old 12-16-02, 09:23 PM
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I use 10w-30 Moble 1 non-synth (costs a little more, but more then pleased with it).

-Error402
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Old 12-16-02, 09:45 PM
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10-30, any generic brand **** i can swipe from work works fine.
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Old 12-16-02, 09:46 PM
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Castrol GTX 20W-50
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Old 12-16-02, 10:29 PM
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I run Castrol GTX 10W40... going by the owners manual, that's the weight it tells me for my climate.. hey, it's what Mazda says, and they're NEVER wrong! LOL

--Danny
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Old 12-16-02, 10:43 PM
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Havoline 10w30. Used to use Castrol 20w50 - Havoline has a higher flash point (makes sense to use it on a rotory) and I found the 20w50 too heavy for the climate up here (Canuck). Then again, I don't think it matters nearly as much as we like to think it does. Use a Premium grade and keep it topped up!!
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Old 12-16-02, 11:30 PM
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I run
20w50 racing oil in summer
10w40 el cheapo in the winter
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Old 12-17-02, 01:51 AM
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Originally posted by RotorMotorDriver
Ok, here it is, straight from my Mazda spec book...

Lubricant Classification - A.P.I. Service SD, SE or SF
Above -10 degrees C (15 degrees F) - SAE 20W-40 or 20W-50
-25 degrees C to -30 degrees C (-13 degrees F - 86 degrees F) - SAE 10W-30
Above -25 degrees C (-13 degrees F) - SAE 10W-40 or 10W-50
Below -20 degrees C (-4 degrees F) - SAE 5W-20
Below 0 degrees C (32 degrees F) - SAE 5W-30

Oil Capacity:

Full capacity - 4.6 Liters (4.8 US Quarts, 4.0 Imp. Quarts)
Oil pan capicity - 4.2 Liters (4.4 US Quarts, 3.7 Imp. Quarts)

~T.J.
And heres the debate about synthetic oils if youre interested: https://www.rx7club.com/forum/showth...ight=synthetic

~T.J.
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Old 12-17-02, 03:01 AM
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what would you reccomend for meeh since i live in So CA , im thinking about 10w 30 or 10w 40 thanks a lot you guys are really helpful sorry im still a newbie
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Old 12-17-02, 05:26 AM
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I run 20/50 yr round...
I live in FL,So the thicker is helpful and I dont drive it much in our 1 month of cold weather.
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Old 12-17-02, 09:14 AM
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I use 20-50 and find it works well even when the external temperature varies from minus 3 to 34 degrees C on the same day. The critical factor is getting the engine temperature up when you start, even on a hot day it takes a minute or so to get the temperature gauge moving- then I get the car moving!
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Old 12-17-02, 02:39 PM
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10W30 or 20W50 for me.
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Old 12-17-02, 02:42 PM
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10W30, which is what more than 90% of car manufacturers use.
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Old 12-17-02, 03:00 PM
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Originally posted by coldy13
I use 20w-50 mixed with 1/2 quart MMO
ditto
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Old 12-17-02, 06:03 PM
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castrol 20w50 with 1/2 qt of MMM...MMM makes the oil thinner so I use the higher weight oil...cjf
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