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What oil is good for iron engines

2025-10-03 23:19:30 mechanical

What oil is best for iron engines? ——Analysis of popular topics across the entire network

Recently, the topic of "what oil is good for iron engines" has soared in automotive forums, social media and search engines. Many car owners have questions about the maintenance of old iron engines, especially when choosing engine oil. This article will combine popular discussion data on the entire network for the past 10 days to provide you with structured analysis and practical suggestions.

1. Hot data statistics on the entire network (next 10 days)

What oil is good for iron engines

platformRelated topicsCore concerns
Baidu search12,800+ timesOil viscosity selection
Autohome Forum670+ postsMineral oil vs synthetic oil
Zhihu320+ answersHigh mileage oil recommendation
Tik Tok1.5 million viewsSludge cleaning tips

2. Key indicators for oil selection of iron engines

According to the consensus of professional technicians and popular discussions, the following parameters need to be focused on when choosing engine oil:

parameterRecommended rangeReason description
API levelSL level or aboveMeet basic protection needs
Viscosity (SAE)10W-40/15W-40Adapt to the thermal expansion and contraction of the iron cylinder
Zinc content (ppm)800-1200Protect camshaft and other components
Base value (TBN)≥7Neutralize acidic substances

3. Comparison of actual tests of popular engine oil brands

According to the actual test video of Douyin and feedback from the forum owners, the following three engine oils performed outstandingly in iron engines:

brandmodeladvantageApplicable to vehicle age
ShellRimula R4 15W-40Strong cleanlinessMore than 10 years
MobilSuper 3000 10W-40High temperature protection5-15 years
Great WallJinjixing J600 15W-40High cost performanceMore than 8 years

4. Analysis of common misunderstandings of car owners

1.Misconceptions:Synthetic oil must be better than mineral oil
fact:When designing old iron engines, they are mostly targeted at mineral oil, and some synthetic oils are not sealed enough

2.Misconceptions:The higher the viscosity, the better the protection
fact:The use of 20W engine oil in the north in winter may cause difficulties in starting. Please refer to the manual to select it.

3.Misconceptions:Adding engine oil additives can enhance protection
fact:Most additives will destroy the ratio of engine oil, and well-known brand engine oil already contains necessary additives

5. Maintenance suggestions (combined with hot search terms)

1.Oil change cycle:Recommended to not exceed 5000 km or 6 months (20% shorter than aluminum engines)
2.Machine filter selection:Preferred metal shell filter element (Top 3 of the hot searches in Kyoto: Man brand W7015)
3.Hot car tips:Idle speed for 1-2 minutes after starting in winter (the key emphasis on popular teaching videos on Douyin)

Summarize:Iron engines should choose mineral oil or semi-synthetic oil with high zinc content and appropriate viscosity. Regular replacement is more important than pursuing high-end engine oil. It is recommended that car owners make reasonable choices based on the actual working conditions of the vehicle and combine them with the above data.

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