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What oil for my newly acquired Samurai #5078924 04/18/19 02:37 PM
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ad244 Offline OP
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Well summer is here and it was time to buy a new to me toy. I've got an 88 Samurai with the 1.3L stock motor and a reported 80,000 miles on it. I dont think the Odo has gone over but it is a small possibility. Anyhow any recommendations on oil selection for this thing and if anybody knows if Synthetic is ok to use?

I've also got to change the other fluids some day as well but the oil is sludge black.

Thanks!

Re: What oil for my newly acquired Samurai [Re: ad244] #5078928 04/18/19 02:39 PM
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rooflessVW Offline
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I'd run 15W-40.


"Zed's dead baby, Zed's dead."
Re: What oil for my newly acquired Samurai [Re: ad244] #5078929 04/18/19 02:39 PM
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Env1ous Offline
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I would honestly use some pennzoil platinum in it. See any leaks on it?
What is the weight spec'd from factory?

You should be fine using a 5w-30

Re: What oil for my newly acquired Samurai [Re: ad244] #5078930 04/18/19 02:41 PM
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addyguy Offline
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10W-30 or 15W-40 HDEO would be great for this application in CA. That engine will have to rev hard.


2010 Kia Soul 2U - 2.0L I-4, auto; 146k miles.
Castrol GTX HM 5W-30, STP blue bottle; Fram TG 9688.

2009 Pontiac G5 - 2.2 I-4, auto, 121k miles.
Oil/filter TBD
Re: What oil for my newly acquired Samurai [Re: ad244] #5078934 04/18/19 02:43 PM
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ad244 Offline OP
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Thanks for the quick responses guys, Its a pretty low stress but revvy engine. It leaks from the oil pan but not enough to change the dipstick level. Obviously it isn't good for much more than 60mph on the freeway but low range climbs on 90+ Degree days may have it running hot.

Any recommended brand for the Diesel spec?

Its pretty bone stock as well

Last edited by ad244; 04/18/19 02:46 PM.
Re: What oil for my newly acquired Samurai [Re: ad244] #5078937 04/18/19 02:47 PM
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rooflessVW Offline
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Originally Posted by ad244
Any recommended brand for the Diesel spec?

Rotella is a favorite around here but you'll be served well by any, really.

My preference is Mobil but it's just a preference.


"Zed's dead baby, Zed's dead."
Re: What oil for my newly acquired Samurai [Re: ad244] #5078954 04/18/19 02:59 PM
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addyguy Offline
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Any 15W-40 is good stuff, but now that you mention the leak, might want to look at a 10W-40 HM oil.

Or Valvoline Maxlife 15W-40 if you can get it.


2010 Kia Soul 2U - 2.0L I-4, auto; 146k miles.
Castrol GTX HM 5W-30, STP blue bottle; Fram TG 9688.

2009 Pontiac G5 - 2.2 I-4, auto, 121k miles.
Oil/filter TBD
Re: What oil for my newly acquired Samurai [Re: ad244] #5079044 04/18/19 04:20 PM
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AZjeff Offline
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I've owned my Samurai for 17 years and it's been happy with anything I put in it from 5w-30 to straight 30 to 15w-40. Can't tell a bit of difference.

Still got the stock carb? Maybe in Ca you have to.

You won't fix the oil pan gasket with HM oil.


86 Samurai 1.3 leftovers
14 RAV4 2.5 5W-20 PP
18 Nissan Titan 5.6 DI, QSUD

The most important thing to do in your life is to not interfere with someone else's life. - Frank Zappa

Re: What oil for my newly acquired Samurai [Re: AZjeff] #5079046 04/18/19 04:22 PM
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ad244 Offline OP
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Originally Posted by AZjeff
I've owned my Samurai for 17 years and it's been happy with anything I put in it from 5w-30 to straight 30 to 15w-40. Can't tell a bit of difference.

Still got the stock carb? Maybe in Ca you have to.

You won't fix the oil pan gasket with HM oil.


Yep stock carb and basically everything. It needs a good cleaning and going through as its been a ranch truck for the last several years.

What fueling/ carb mods would you recommend?

Re: What oil for my newly acquired Samurai [Re: ad244] #5079052 04/18/19 04:28 PM
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littlehulkster Offline
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Synthetic is fine.

I'd actually recommend Rotella T/Delvac/Delo 5W-40 synthetic if you don't want to run regular old 5w-30.

As for myself, I'd probably just get a decent full synth 5w-30 on sale and run it. Shouldn't have any problems. Even a cheaper synthetic like Magnatec or Quaker State UD is going to be a superior oil to your typical 1988 vintage oil.


2015 Mazda3 I 2.0
Re: What oil for my newly acquired Samurai [Re: ad244] #5079058 04/18/19 04:37 PM
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ka9mnx Offline
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I ran 10w-30 M1 in mine and it ran great. Fuel economy was awesome! And yea, 60mph is about all you want to go with it. All revved out!


2005 Ranger 3.0 - SuperTech Syn 5w-30/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
Re: What oil for my newly acquired Samurai [Re: ad244] #5079121 04/18/19 05:45 PM
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ad244 Offline OP
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Thanks for the recommendations guys! Its in the shop now for some new U Joints which were banging around. Debating lifting it and larger tires

Re: What oil for my newly acquired Samurai [Re: ad244] #5079191 04/18/19 07:06 PM
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AZjeff Offline
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Originally Posted by ad244
Thanks for the recommendations guys! Its in the shop now for some new U Joints which were banging around. Debating lifting it and larger tires

And it begins. Next will be re-gearing and fixing driveline angles, (and you think it's gutless now)? These things were 65 raging Japanese horsepower new.


I kept my mild, 2 inch lift and 235/75-15 tires. No cool factor but no driveline problems and it will go anywhere and run 65 with the rack off. I get 21-22 mpg no matter how or where I drive it.

There was a simple vent mod for the stock carb to keep it from flooding out at high angles. When the stock carb dies a Weber wakes it up if that's legal for you. Change out the tranny lube with something synthetic. Lots of things to fix and mod if you want, search around a bit.

[Linked Image]


86 Samurai 1.3 leftovers
14 RAV4 2.5 5W-20 PP
18 Nissan Titan 5.6 DI, QSUD

The most important thing to do in your life is to not interfere with someone else's life. - Frank Zappa

Re: What oil for my newly acquired Samurai [Re: ad244] #5079249 04/18/19 08:19 PM
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littlehulkster Offline
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I wish I could find a samurai that clean. I've always loved the things but up here they all rusted into pieces a decade ago.

Last edited by littlehulkster; 04/18/19 08:19 PM.

2015 Mazda3 I 2.0
Re: What oil for my newly acquired Samurai [Re: ad244] #5079476 04/19/19 05:54 AM
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ka9mnx Offline
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Originally Posted by ad244
Thanks for the recommendations guys! Its in the shop now for some new U Joints which were banging around. Debating lifting it and larger tires

That would be a mistake...


2005 Ranger 3.0 - SuperTech Syn 5w-30/Motorcraft
2000 4Runner 3.4 - SuperTech Syn 5w-30/Toyota
1997 B2500 Van 3.9 - M1 HM 10w-30/Mopar
1993 F150 4.9 - SuperTech Syn 5w-30/Motorcraft
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