Top 1 Synthethic Engine Oil (for Honda CRV 2004)

[wic]

Nagpa change oil kasi ako at ni recommend nung shop itong synthetic engine oil instead of using regular oil.

Tanong ko lang po kung may nakagamit na sa inyo netong Synthetic engine oil (Top 1 ang brand). Meron bang epekto sa makina ang pag gamit ng synthetic instead of regular oil. TY

[MrQ5]

NOT AN EXPERT: AFAIK ang masama lang sa makina ay (1) kung sa mga una mung OCI (oil change interval) ay walang detergents ang oil na nilalagay at sa pagpapalit mu ng langis ay bigla mu itong papalitan ng may detergents... lilinisin nito yung mga sludges na na build-up before na walang detergents na oil at ma-pupuno agad ang oil filter nito, at itoy mangyayari pa siguro sa mga susunod na OCI dahil hindi lahat nakuha ng filter yung mga na dissolve na sludges (2) API rating and viscosity of oil should match to your vehicles manual's recommendations.

sa palagay ko naman di masama pagpalit mu from regular to synthetic, maganda naman yata feedback ng TOP1.
IMO i recommend the CI-4 oil rating for car model earlier than 2007, even though the below article is for old aircooled engine.
saka mag engine flush ka na din siguro on your next OCI (liqui-moly)

How did you determine the recommended 0.12% Zn and P level (ZDP, a.k.a. ZDDP)?

There are many excellent SAE technical papers on the subject, but the one I found most interested was from 1977 titled "Cam and Lifter Wear as Affected by Engine Oil ZDP Concentration and Type." There is some background that is needed to shed light on their results. First of all, there are different types of ZDPs. There is an Aryl ZDP which is the most stable form. There is also an Alkyl ZDP which although is not as stable, exhibits the best wear protection.

In various fleet tests, it was determined that the best performance was from oils containting all Alkyl ZDPs or predominantly Alkyl ZDP blends. They also looked at the performance of "ashless" oils (0.03-0.05% Sulfated Ash) vs oils with normal levels (0.11% or higher) and it would appear that oils with lower ash levels needed more ZDP to provide the same level of protection. I bring this up since the newest CJ-4 and SM oils require significantly lower ash levels, less than 0.10%. Across the Indianapolis, Phoenix, and Los Angeles taxi fleets observed, oils with 0.11-0.13% Alkyl ZDP resulted in the lowest combined and average cam wear measured. Levels of wear remained low with oils with Alkyl ZDPs as high as 0.19%. Excessive Zn and P levels cam result in additional wear.

The oils that had at least 0.07% Alkyl combined with 0.05% Aryl performed just as well as oils with higher Alkyl only ZDP levels, suggesting some sort of synergistic properties of the decomposition products of the Alkyl/Aryl blend. Combined ZDP levels of the Aryl and Alkyl blend were min. 0.12%.

Our assumption with choosing a minimum Zn and P levels of 0.12% is on the assumption that the best combo of ZDPs are being used for wear performance, not longer drain intervals, with a motor oil that uses low levels of Ca-based detergents supplemented with Na or Mg detergents. Oils for long-drain intervals almost entirely use Ca-based detergents! Oils with Ca-based detergents in high concentrations need significantly more Zn and P, at least 0.145%. Both Redline and Swepco use Ca-based detergents and run additional levels of Zn and P of 0.145% or roughly 1450 ppm, as would be expected.

The more detergent an oil is, the more anti-wear additives are needed. That means the correct amount of Zn and P in any given oil is a moving target.

More recently, in the development of the IIIG sequence, developers went so far as to say that there was no need for the VD and VE sequences for testing of OHV (overhead valve) engines because these engines are not commercially available as new anymore and do not reflect the needs of more modern engines. In a SAE paper titled "How Much ZDP is Enough?" from 2004, the resulting trend of decreasing phosphorus is as a direct result of observations that modern engines, with lower spring pressures and lighter vavletrain, including multiple intake and exhaust valves, seems to require only .03% Ph to prevent wear. It was further documented that by increasing to 180 lbs of spring pressure with a .03% ZDP resulted in 267 mil of wear where with .05% ZDP concentration tests resulted in 26 mil of wear. That same .05% oil with just 205 lbs of pressure resulted in 153 mil of wear, requiring .095% ZDP to reduce wear, resulting in just 16 mil. The ZDP requirements of a motor oil are directly proportional to valvetrain spring pressure. Most older SOHC and pushrod aircooled Porsche engines have significantly more pressure, as a stock street pushrod Porsche 356 or 912 engine exceeds these levels of spring pressure compared to the levels of pressure on modern engines, for which oils are tested for.

Newer oils will continue this trend, leaving older engines with fewer and fewer choices for motor oils compliant with the requirements of these older valvetrain, hence our recommendations for using oils with higher levels of ZDDPs as substantiated by earlier testing sequences and the results on engines similar to our older aircooled Porsches.

What motor oils had the 0.12% levels of zinc and phosphorus recommended?

The current API standard is SM, and calls for 0.06-0.08% Zn and P.

Here are the running averages for all the oils tested thus far, listed by their API rating:

API------P (ppm)--Zn (ppm)----B (ppm)-----Mo (ppm)----Ca (ppm)----Mg (ppm)----Na (ppm)----Total Detergents
SE-SJ---1301------1280 --------151---------357------------ 1936--------293----------214------------ 2443
CI-4-----1150-----1374---------83----------80--------------2642-------- 199----------**--------------2840
SL-------994------1182---------133---------273-------------2347-------- 109----------22-------------2479
CJ-4-----819------1014---------26----------**--------------2075-------- 7---------- --**--------------2082
SM------770-------939 ---------127---------122-------------2135-------- 13----------139-------------2287

I do not recommend the use of any SM or CJ-4 motor oils in any aircooled Porsche, or any vehicle that can benefit from the added anti-wear additives such as pre-ODBII vehicles. If your vehicle is designed to use these newer oils or if your vehicle requires a manufacturer approved oil and is still under warranty, always follow your manufacturer's recommendations!
----from "Oil What motor oil is best for my aircooled Porsche? (or any high performance engine)"
by Charles Navarro LN Engineering Nickies The Original and Genuine CNC Billet Aluminum NSC-Plated Cylinders

HTH

[marg]

Top 1 is Type 3 Synthetic.

It is just modified Mineral Oil sold as Synthetic. Panloko ng mga consumers Kaya MURA.

The better Synthetics are Type 4 PAO such as Mobil1 and Royal Purple, and Type 5 Ester such as Motul. These are made in the Lab and are not petroleum based.

[wic]

TY sa mga rumispande. Mukhang maganda nga ang review ng Royal Purple synthetic engine oil.

Anong advise nyo, should I change to RP immediately or wait til my next OCI (after 5,000 KM)? Ala kayang problema sa makina, naka 1,000 KM na yang oto since my last oil change.