1996 Subaru Sambar with 30W recommendation

Joined
Nov 9, 2009
Messages
81
Location
El Paso, TX
Hello everyone,

I am having a 1996 Subaru Sambar (kei van) imported from Japan and planning out the maintenance once it arrives next month, the manual indicates to use a 30W oil for multi-season use. What would be the modern equivalent to use on this car?

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Also id use any euro or diesel rated oil for the better anti wear additives. My pick would be pp euro l 5w30. little bit thicker and stout compared to other 5w30's
 
I would go an API SP 10W30

Nothing wrong with a 5W30 especially a Euro rated A3/B4 one, but to me a modern 10W30 is the closest match to an old school 30W.
 
Nothing wrong with a 5W30 especially a Euro rated A3/B4 one, but to me a modern 10W30 is the closest match to an old school 30W.
I'd say that 10W30 HDEO or 5W30 A3/B4 is probably the truest match for old school straight 30, I'd expect straight 30 has an HTHS of around 3.5-3.7, CK-4 oil and A3/B4 have a minimum HTHS of 3.5. Although the Sambar will probably run perfectly fine on Xw30 resource conserving oil, I guess if anyone's scared that the resource conserving stuff is too thin for this engine there's always 0W40 Mobil 1 or Castrol Edge.
 
I'd say that 10W30 HDEO or 5W30 A3/B4 is probably the truest match for old school straight 30, I'd expect straight 30 has an HTHS of around 3.5-3.7, CK-4 oil and A3/B4 have a minimum HTHS of 3.5. Although the Sambar will probably run perfectly fine on Xw30 resource conserving oil, I guess if anyone's scared that the resource conserving stuff is too thin for this engine there's always 0W40 Mobil 1 or Castrol Edge.
Any specific recommendations in regards to the 5w30 A3/B4?
 
I'd say that 10W30 HDEO or 5W30 A3/B4 is probably the truest match for old school straight 30, I'd expect straight 30 has an HTHS of around 3.5-3.7, CK-4 oil and A3/B4 have a minimum HTHS of 3.5. Although the Sambar will probably run perfectly fine on Xw30 resource conserving oil, I guess if anyone's scared that the resource conserving stuff is too thin for this engine there's always 0W40 Mobil 1 or Castrol Edge.
Please educate me, on how the A3/B4 stacks up to API rating? Or is that where minimum HTHS 3.5 comes in. CK-4 sounds like an old diesel oil category.. a little unclear about the A3/B4, have those ratings been surpassed, HTHS 3.5 vs an API 30-grade, is not HTHS of that 3.0 or is that incorrect
 
Please educate me, on how the A3/B4 stacks up to API rating? Or is that where minimum HTHS 3.5 comes in. CK-4 sounds like an old diesel oil category.. a little unclear about the A3/B4, have those ratings been surpassed, HTHS 3.5 vs an API 30-grade, is not HTHS of that 3.0 or is that incorrect
Any oil with an HTHS of 3.0 or higher can be an (Xw)30 grade, but your typical straight 30 grade oil having a heavier base oil with no VIIs will have an HTHS viscosity closer to 3.5 and typically a KV100 in the upper range of a 30 grade. A3/B4 is really two things, A3 is a full SAPS gasoline ACEA sequence, it would be most similar to a non-resource conserving Xw30 rated API S-rated oil , and B4 is a sequence for full SAPS passenger car diesels with EGRs I believe, there's not really an API equivalent, there's API CF, but pretty much the API abandoned any specifications for diesel passenger cars after GM's 4.3 and 350 Olds diesel flop, I guess the closest thing would be to compare it to CI-4+ but tweaked for diesel passenger cars. Most ACEA A3/B4 oils you can buy in the states have stringent manufacturer approvals for extended drain intervals for European cars like BMW LL-01, MB-Approval 229.5, Porsche A40, and VW 502/505.
 
Any oil with an HTHS of 3.0 or higher can be an (Xw)30 grade, but your typical straight 30 grade oil having a heavier base oil with no VIIs will have an HTHS viscosity closer to 3.5 and typically a KV100 in the upper range of a 30 grade. A3/B4 is really two things, A3 is a full SAPS gasoline ACEA sequence, it would be most similar to a non-resource conserving Xw30 rated API S-rated oil , and B4 is a sequence for full SAPS passenger car diesels with EGRs I believe, there's not really an API equivalent, there's API CF, but pretty much the API abandoned any specifications for diesel passenger cars after GM's 4.3 and 350 Olds diesel flop, I guess the closest thing would be to compare it to CI-4+ but tweaked for diesel passenger cars. Most ACEA A3/B4 oils you can buy in the states have stringent manufacturer approvals for extended drain intervals for European cars like BMW LL-01, MB-Approval 229.5, Porsche A40, and VW 502/505.
Okay, making a little more sense now, many acronyms but all good.

SAPS?
AND A3=Gasoline
B4=Diesel (passenger)
as in ACEA A3/B4
 
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